2019 chevy colorado temperature gauge not working

Reset Procedure 2. If the above reset instructions do not work for your Colorado, then this alternate method may work. Start your Colorado. Close all windows and doors. Open the window by pressing and holding the window control switch. When the window is fully open, keep the switch pressed for a few seconds.

2019 chevy colorado temperature gauge not working. Step 3: simultaneously press the 'AC' and 'Max AC' buttons. Hold the "AC" button and the "Max AC" button for at least two seconds, both located at the front of the gear selector. These are the two big buttons on the dashboard that you use to control cabin climate.

2008 Chevy Colorado. I keep getting an "AC OFF" message in the message area. When this comes on, the thermostat does not - Answered by a verified Chevy Mechanic. We use cookies to give you the best possible experience on our website. ... Now "Engine Hot, A/C Turned Off" message on dash, with temperature gage not working. …

Radiator fan staying on all the time. I have a 2016 Colorado 3.6 with 231,200 miles on it. A week ago my radiator fan started coming on as soon as I started the truck and would stay on while driving. Temperature never got over 160. When I shut the engine off the fan would stay on for about 5 minutes and then shut off.If the engine coolant level isn’t high enough to keep pressure in the engine it will run hot. But, there won’t be enough coolant to reach the temperature sensor. Without the coolant hitting the sensor, the temp reading will be significantly lower than the actual engine temp. Your Colorado’s radiator fan will not kick on.Your Chevy Colorado may be equipped with a steering lock system. In some cases, a misaligned steering wheel can bind the ignition switch, causing the key to be stuck. Follow these steps to unlock your steering wheel: Apply light pressure to the key: While keeping light pressure on the key in the ignition (as if you're trying to turn it ...Normally, Temperature gauges show a mid-scale reading (or slightly less) for a normal operating Temperature. If the Thermostat was stuck-open, it might show 1/4 scale, for example. 2008 Malibu: Bronze? / 2.4 L I4 / FWD / Leather /117k mi 1/16/22 (Dad's vehicle) N. Nugnug Discussion starter.In today’s rapidly evolving technological landscape, the demand for precision and efficiency has become paramount in various industries. One such tool that has revolutionized the w...2464 posts · Joined 2008. #1 · Aug 20, 2010 (Edited by Moderator) My dash lights have stopped working. At first, they were just blinking when the headlights came on. Now they don't work at all, I pulled the cluster fuse and it's fine. I looked at the electrical schematics and I couldn't figure out which relay I would need to check.

396 posts · Joined 2014. #5 · Feb 21, 2016. There's this somewhat-related issue with the sending unit being installed wrong from the factory. Fuel Gauge Will Not Read Below 1/2 Tank. 2015 GMC Canyon SLT, V6 Crew Cab Short Bed - Quicksilver Metallic, Driver Alert package, Navigation, Bose Audio, Trailering Package.Welcome back to the channel! In this video Sean goes over why the radiator fan won't turn off on your 2014 - 2019 Chevy Silverado or GMC Sierra. Thermostat...I have an 08 chevy Colorado. Its doing the same thing. My temp gauge does not work and the A/C off warning comes on even in the morning when it's cold. It started working awhile, then started again. ... The fact that you also have a P0118 DTC and an erratic temperature gauge, indicates a possible wiring problem. Quite a few 2009 owners have ...If you're comfortable doing so, unplug the pressure switch and jump across it. If you do and the AC turns on then the switch is bad - if AC doesn't turn on then you may have a blown fuse or damaged wire, or worse a BCM failure. '11 LTZ, born Aug 2010, Fairfax, KS. V6/A6, Red Jewel Tintcoat / Cocoa-Cashmere, Sunroof.The glue can and will gum things up and may stop them from working. Always use the nickel plated valve stem inserts, never raw brass ones. ... 2007-2013 Chevy Silverado, Avalanche, Tahoe, and Suburban and GMC Sierra and Yukon Tire Check and Rotation ... Understanding Tire Pressure Monitor Systems (TPMS) September 12, 2019. Tire Tread Depth: How ...2019 Chevrolet Colorado; 2019 Chevrolet Equinox; 2019 Chevrolet Silverado 1500; 2019 GMC Canyon; ... but that's not working any longer. Reply. Jerry T says: August 10, 2023 at 1:22 pm.Ok so went out and bought an 08 Canyon with the 3.7. the temp gauge didnt work (with the a/c off message) anyways figure with the age it could use a new sensor and thermostat for good measure. ... A forum community dedicated to Chevy Colorado and GMC Canyon owners and enthusiasts. Come join the discussion about performance, modifications ...Temp gauge not working 2011 malibu. I got 2011 Malibu with the 2.4 motor..not flex fuel and temp gauge stopped working so I replaced thermostat and ect senser and it worked for half a day then stopped again.i did just recently flushed the radiator with blue devil flush then removed thermostat and ran blue devil head gasket sealer thru …

Reconnect the wiring connector. Make sure all the coolant plugs are secure. Add coolant and place the cap back on the reservoir. Lower your car. Start the engine. Wait to see if the temperature ...Two common issues are fuel gauge doesn't go to full, goes about 3/4 or a little more and that's it. Bulletin number is 09-06-04-007A. An internal vapor line in the tank can block the level sensor arm from going full range and is causing that condition. Fix is to reposition the vapor line. While you're there ( you need to drop the tank to do the ...A. aaronabbott Discussion starter. 1 post · Joined 2010. #1 · Jan 5, 2010. So my Colorado won't start. When I try to start it, all the lights, radio, AC fan turn on and work and don't dim. I replaced the battery anyway, but it still doesn't start. I tried starting and leaving the key to the on position for 10 minutes then attempted to start ...If the thermostat is not working at this particular rate, too fast or too slow to open, the ——— will show as the temperature reading. This is apparently something GM did with the Cobalt and several other vehicles of this era. I guess it could be this, but it will show the dashes from startup and never show a temp.

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22 posts · Joined 2015. #1 · Aug 23, 2015. Gentlemen, For last couple of days, I observe a different behavior of temp gauge needle. It used to stay on half always. Now when the car is stationary or on a signal, the needle goes one point above the half and comes back to half (automatically). It seems the fan brings it down.#1 · Feb 12, 2020. This being [2018 CC Extended cab I4 6 speed manual] my first 'Modern Truck', [My last truck was a 1982 Datsun Diesel], I have never had a external temp …2018 Colorado temp gauge stopped working with only 36k miles. the radiator fan runs for about 10 minutes after I turn off the truck and take out the keys. th...2019 Chevy Colorado cooling will not run. I have tried everything - Answered by a verified Chevy Mechanic. ... temperature gauge stop working after fluation for couple of days fan stays on after i turn it off engine 2016 chevy colorado 2.5 ...I will suggest the same as others have. Check coolant level, if low then top it off. The ECT won’t work properly if there isn’t coolant. If coolant is full then check into replacing the ECTs. They are cheap and are known to go bad on the Cruze and will show false readings on gauge.How much is a 2019 Chevrolet Colorado? Edmunds provides free, instant appraisal values. Check the LT 4dr Extended Cab 4WD SB (2.5L 4cyl 6A) price, the Work Truck 4dr Crew Cab 4WD 6.2 ft. SB (3.6L ...

engine temp gauge not working/air con not cold. I have a 2014 Silverado Z-71. One day I noticed the cooling fans staying on longer after engine shut off, thought nothing of it. Then one day the check engine light was on so I had the codes ran and it said it was either the thermostat or the temp sensor, but then the light went off and all was good.Research the 2019 Chevrolet Colorado at Cars.com and find specs, pricing, MPG, safety data, photos, videos, reviews and local inventory.Abnormal Behavior of Temperature gauge. ... 2016 Ford Explorer Limited 4WD<br />Traded In November 2016 2011 Chevrolet Traverse AWD 2-LT, Built 04/27/2011, Red Jewell Tint Coat, Lt. Gray Leather Interior. ... 2022 Chevy Blazer 2019 Colorado LT 2016 SS Sedan 2001 Trans Am Previous Rides: 2017 Traverse LT2 (traded at 106k miles) 2016 Traverse LT ...The most common reasons a 2019 Chevrolet Colorado radiator fan isn't working are the fan assembly, the fan clutch, or the coolant temperature sensor. 0 %. 34 % of the time it's the. Fan Motor or Clutch. 0 %. 28 % of the time it's the. Fan Relay or Fuse. 0 %.I bought a 2019 ZR2 in February and about once a month experience issues when starting the vehicle. There is a constant clicking noise, gauges flicker, check engine light pops on and the following alerts keep popping up on the dashboard: "Fuel level low" - I have over half a tank currently in the vehicle. "Service power steering, drive ...Here is a more detailed list of the reasons why your car temperature gauge goes up and down: 1. Bad Thermostat. The thermostat is used to regulate the temperature of the coolant. If it starts to fail, it can act erratically, causing the gauge to jump up and down. Once it goes bad, it will no longer act this way.2017 canyon engine temperature sensor location. For a week I have had no A/C , Temp Gauge did not move, and the engine fan stayed on when I shut the truck down and started. Started truck today all good, A/C good, Temp Good, Fan Off. All indications it was the Engine Coolant Temperature Sensor, thinking it maybe a good …The strange part was that when the problem happened the coolant temp gauge on the dash would drop to dead cold. ... 2017 2.5 Chevy Colorado was doing the samething I replaced the thermostat is still doing the samething fan stays on when engine is off ans runs full blast when truck is running and temp gauge stays at 160 .no check …

A pressure gauge allows a fluid to enter from the item or equipment being measured and reacts by moving a calibrated rod inside it. The pressure can be correctly read when the rod ...

16WhiteColly. Sounds like a bad sensor, a thermostat would usually not stick and free up like that repeatedly. Your thermostat is at least a 195 if not 203, so it will run near the high side of the guage, use your scan tool to compare the guage reading to the actual reading. Out of temp. reading will shut the A/C down.Another possible cause of a car temperature gauge reading high is a clogged radiator. Like a bad water pump, a clogged radiator will result in an engine that will heat up when idling, but cool off when the vehicle is moving at speed. Your radiator may be clogged if it's old and rusty. It can also become clogged if you are using old or poor ...C. Chandler219 Discussion starter. 26 posts · Joined 2018. #1 · Dec 5, 2022. I just had my truck at dealer for no temp reading and fan running max. I was surprised they told me thermostat housing. I thought it was the block temp sensor but didn't think thermostat.3 posts · Joined 2022. #1 · Sep 29, 2022. 2019 XT5 the temperature gauges quit working every morning about 15 miles in to my 45 mile drive. Suv is in the parking lot for 8 hours. When i start the Suv to drive home gauge still doesnt work and a/c blowes hot for about 3 miles then the gauge starts working and a/c blows cold.23 posts · Joined 2020. #1 · Jun 21, 2022. I have a 2021 Colorado Z71 and the backup camera sometimes doesn't work. I either get a blue screen saying to service it or it flickers between the blue screen and video. If you ever saw the old TVs where the vertical hold is out of whack, that's what it looks like (but I'm dating myself here).The base engine for the Colorado is a 200-horsepower, 2.5-liter 4- cylinder engine that averages 22 mpg. That's suitable for the lower-priced workhorses. There's also an intriguing, if expensive, 2.8-liter turbodiesel option that generates 369 lb.-ft. of torque at 2,000 rpm.Mar 4, 2017. #5. EXT4ME said: The very first thing I would do is have the battery LOAD TESTED. Most auto parts store will do this for you for free. I bought a load tester at Harbor Freight so I can test my own. A battery with weak, dying or dead cells can cause all sorts of weird electrical things to happen in these trucks.Here's how: 1.) Click on your Avatar/icon at top-right, go into “ Account Settings ”, then “ Vehicle Details ” and enter something like the following: 2011 Equinox 1LT V6 3.0L FWD 170.5k miles. That’s my Nox: year, make, model, trim, engine, front-wheel drive (or all-wheel drive), and current miles on the odometer.According to a recent report from GM TechLink, the Service Power Steering message issue may be encountered in certain units of the 2019 through 2023 Chevy Blazer and 2018 through 2023 Chevy Traverse. The message may be accompanied by Diagnostic Trouble Code (DTC) P0128, or Engine Coolant Temperature Below Thermostat Regulating Temperature.The motor will not even crank. When the key is turned to the "on" position, you can hear the throttle body click, but none of the gauges move, no other lights come on in the dash but the check engine light. Horn, headlights, cig lighter, mirror adjustment, flashers, interior lights, and locks work. All accessories that run off of the key do not ...

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Here's Why This Chevy Colorado is a Better Buy Than a Toyota Tacoma, DIY and truck review with Scotty Kilmer. Toyota vs Chevy. Used Chevy Colorado review. Ar...5766 posts · Joined 2012. #3 · Apr 10, 2017. Re: AC not working and other codes. 1. The total refrigerant capacity of the system is 23.2 ounces (1.45 pounds). 2. Look on the inside of the fuse box cover and identify which relay that you are jumping.4 posts · Joined 2016. #1 · Mar 17, 2017. Lost my instrument cluster today turned truck on/off no change, drove 30 minutes turned truck off no change. Let truck sit for 60 minutes and then everything was normal no problems. Engine and radio at all times were working normally. Dealer looked at it and found no codes were thrown (or at least ...Your Chevy Colorado 4WD is not working/engaging properly. But don't worry — it had to occur sooner or later, and chances are, you are stuck with one of the following models. 2017 Chevy Colorado 2007 Chevy Colorado 2006 Chevy Colorado 2004 Chevy Colorado However, if you don't see your model here, it's okay. I have got you covered.5. Inspect the battery fuse block cable connections for being lose by grasping each cable near the eyelet and verify they do not rotate on their respective stud. Verify each nut is torqued properly to 15 Nm (11 ft lb). 6. Inspect the negative battery cable where it connects to the engine block and make sure it is not lose by grasping the cable ...Vitamins can be a mysterious entity you put into your body on a daily basis that rarely has any noticeable effects. It's hard to gauge for yourself if it's worth the price and effo...#1 · Apr 1, 2023. I have a 19 Colorado 3.6 and my radiator fan is running nonstop, this is the third time it's happened in 3 months, anyone have a solution on what to start with first, coolant level is right, I know it could be several things. Thank you. Like. Sort by Oldest first. DieselDrax. 10447 posts · Joined 2017. #2 · Apr 1, 2023.The more common problem is the thermostat sticking open, the temp sensor is rarely the issue. Your truck's behavior likely means it also has a check engine light on and a P0128 code set. Replace the thermostat and you should be back to normal, IMO. Sent from my SM-S918U using Tapatalk. * 2017 GMC Canyon Denali CCLB 4x4. ** 2.8L Duramax (GDE ...Coolant temperature issues and questions. I use torque pro app. I've noticed these issues. Torque reads 95* when the dash gauge starts climbing off the 160* mark. When the gauge is maxed at 195*. Torque reads 160*. Torque will hit 190* before the thermostat opens up. Then averages 175* for the remainder of the trip. ….

Fan still running for a few minutes after truck turned off. I drove my truck today 2019 colorado v6. It was about 50 degrees (F) outside. When I got home the fan stayed on even when the key was out I also noticed the temp gauge stayed at 160 the whole drive (basically didn't move). The fan noise is coming form the front end of the truck.The next step is to see if the engine temperature sensor is working correctly. If you have a scan tool with live data, check the engine temperature when the engine is cold, it should be close to outside temperature. Drive a car for 10 minutes and check the engine temperature again, it should be close to 180-220°F or 82-105°C. See the photo.The gauges and infotainment system share a computer bus. I have had the gauges go out twice and the infotainment center go out twice. They all occurred on initialization at startup. Once, shutting off and restarting solved he problem. Once, it took a couple of hours and several restarts. Twice it took overnight to resolve.Most modern phones/tablets can take up to 2.1-2.4A of power to charge. Sometimes even more, for large tablets. Previous generation of phones drew about 1A. Generation of phones before that was only about 350-450mA. In fact, older USB standards on computers had a maximum power output of only 500mA.If the float is OK and the float arm seems to be swinging freely through its full range, replace the tank unit. Ground the gas tank terminal post of the tank sending unit using a jumper wire. If the dash gauge now reeds empty, the gas tank unit is defective. If the dash gauge needle fails t move, the dash gauge is defective.Press and hold the home and fast-forward buttons for at least 10 seconds. Press the Onstar call button, and immediately hang up. Turn the vehicle off, and then turn it back on. While in "Park ...A/c off and engine temperature gauge is a problem I have on my h3 hummer 2008 as well. I changed my coolant temperature sensor too but that didn't work. ... September 21st, 2019 AT 4:03 AM KEN L MASTER CERTIFIED MECHANIC; 42,940 POSTS; Excellent addition to this thread! ... Related Instrument Cluster Gauge Engine Temperature Not Working Content.689 posts · Joined 2011. #7 · Dec 6, 2011. Try seating all the wires in the connector. Possible that when you were unplugging it/plugging it in, you pushed one of the wires out and now the female pin isn't making contact with the male pin. Heard of this happening to people installing DSP switches on the ECM plug. 2019 chevy colorado temperature gauge not working, How to Check a Temperature Gauge & Sending Unit -ChevyHere I check to see if the stock Chevy temperature gauge works by using a potentiometer to see a specif..., How to Check a Temperature Gauge & Sending Unit -ChevyHere I check to see if the stock Chevy temperature gauge works by using a potentiometer to see a specif..., There are some reasons why the temperature gauge might not be working on a Chevy Colorado. The common issue is a broken or defective gauge wire. If the wire is broken, the gauge will not work. …, 4 posts · Joined 2016. #1 · Mar 17, 2017. Lost my instrument cluster today turned truck on/off no change, drove 30 minutes turned truck off no change. Let truck sit for 60 minutes and then everything was normal no problems. Engine and radio at all times were working normally. Dealer looked at it and found no codes were thrown (or at least ..., No action happening with either circuit, new sensor needed. You could unplug the connector and jumper in a 0-1K potentimeter/variable resistor to the gauge lead and ground, ign on, and vary the resistance and view the gauge for sweeping action. if gauge works, new sensor needed. If gauge does not work, bad gauge or connection …, #1 · Oct 20, 2013. Ok guys just got done changing the tstat and flushing coolant. I was throwing a CEL the other day and got it checked and it came back as coolant temp …, Your Chevy Colorado may be equipped with a steering lock system. In some cases, a misaligned steering wheel can bind the ignition switch, causing the key to be stuck. Follow these steps to unlock your steering wheel: Apply light pressure to the key: While keeping light pressure on the key in the ignition (as if you're trying to turn it ..., So after driving around a few days I was able to get average readings from live data on the scanner. Basically for all the fluctuations on the gauge the temperature is steadily between 106 and 109 deg Celsius. Mostly just sticking at 108 deg Celsius even when the gauge is moving wildly., Buy CDWTPS TPMS Sensor,GM 315Mhz Tire Pressure Monitoring Sensor Compatible for Chevy Silverado GMC Cadillac Buick Pontiac Saturn Hummber Saab Replace#13598771 13598772 13586335 13581558 4 Pack: Replacement Sensors - Amazon.com FREE DELIVERY possible on eligible purchases. www.amazon.com., May 3, 2019 by Jason . One of the most common (and inconvenient) ... If you look at your temperature gauge, and the engine is running hotter than normal, but there is not heat coming from the heater you may be having issues with the water pump. ... Conclusion: Heat Not Working Chevy Colorado. It can be tough to find why your Colorado's heater ..., Never drive faster than your guardian angel can fly!!! Drives 2022 Red Tesla Model Y Drives 2016 Sunset Orange Trax LT1 1.4L Turbo auto 3GNCJPSB8GL142716, 5. Blocked hose. In rare cases, a dirty or pinched hose can be responsible for windscreen washer system malfunction on Chevy Colorado. To diagnose, first open the hood and pull the end of the hose out of a windshield washer nozzle, and then turn on the washer system. You should see the fluid gushing out of the hose., What you need to do is simply push the car’s AC button all while pushing the recirculate button at the same time. This may be enough to reset the car’s outside temperature sensor. Meanwhile, there are cases where you won’t be able to use the abovementioned method of resetting the car’s outside temperature sensor., Cooling fans staying on after shutting engine off. I have a 2018 Silverado 1500 5.3L. The cooling fans just recently started staying on after I shut off the engine. The temperature gauge stays around 165 degrees, even while driving. The A/C also started blowing warm air. I don't see any coolant leaks and I replaced the coolant temperature …, In today’s rapidly evolving technological landscape, the demand for precision and efficiency has become paramount in various industries. One such tool that has revolutionized the w..., 18 posts · Joined 2022. #1 · Apr 7, 2022. Hello all. I recently bought a 2017 and after driving it about 1500 miles (74500k on vehicle), Something strange started happening. When I got to work yesterday, I noticed the fan running after I shut the engine off. I opened the hood, checked the coolant it was good. Felt the hoses they were luke ..., The most common reasons a 2019 Chevrolet Colorado radiator fan isn't working are the fan assembly, the fan clutch, or the coolant temperature sensor. 0 % 34 % of the time it's …, 2.1.Stepper Motor. 2.2.Inaccurate readings. 2.3.Busted LED screen. 2.4.Tachometer Is Not Responding at All. Every vehicle is designed to ensure that performance-related information is easily accessible to its driver. This is why your dashboard houses different tools to keep you aware of what's going on under the hood, such as the tachometer ..., Hook up a scan tool that lets you read different sensors. Coolant temp is pretty basic. I agree with others, that it is likely a sensor failure. These are typically $10 parts. getting access to replace it may be the bigger problem. This is definitely covered by warranty. 07-30-2018, 04:50 PM. # 6., 4 posts · Joined 2016. #1 · Mar 17, 2017. Lost my instrument cluster today turned truck on/off no change, drove 30 minutes turned truck off no change. Let truck sit for 60 minutes and then everything was normal no problems. Engine and radio at all times were working normally. Dealer looked at it and found no codes were thrown (or at least ..., temp gauge not reading. Sort by Oldest first. T. Tom S. 7337 posts · Joined 2017. #2 · Oct 15, 2023. OK. We'll just guess what year/model/engine truck you have. And we'll probably guess wrong., It has not gotten stuck one time with the new Envision shifter. Just Youtube swapping it out, there are some good videos. Maybe 15-20 minutes. I'll report back after a longer test run, but I'm fairly confident the problem is solved. FYI I do like the smaller shifter - given the Colorado/Canyon is not a full size truck its nice to have little ..., 1. Check the Fuse. If none of the brake lights are working, we are going to follow the circuit from the fuse box back to the brake pedal. At some point the power is not getting from point A to point B. We just have to find where that is. Please note that tail lights can work even if the brake lights are burned out., Used 2019 Chevrolet Colorado Crew Cab pricing starts at $18,846 for the Colorado Crew Cab Work Truck Pickup 4D 5 ft, which had a starting MSRP of $27,870 when new. The range-topping 2019 Colorado ..., 2006 Chevrolet Colorado 77,000 mi, Visitor. fuel gage stop working. 2006 Chevrolet Colorado 55,000 mi, Visitor. Fuel gauge read 1/4 tank left and ran out of gas then read 1/2 tank of gas and ran out, finally read almost 3/4 tank left and ran out of gas... Fuel sensor and installation roughly $425.00! 2006 Chevrolet Colorado 130,265 mi, Visitor., 2008 Chevy Colorado 2.9L I4 5spd Reg Cab 2wd [email protected] 1/4 mile My Project My Project ... is good or not. The control of the fuel gauge is by the PCM over the Serial Data Bus. If the other indicators are working normally (they work off the Data Bus also) we can assume that the connect from the PCM to the instrument cluster is probably good ..., Determining what your monthly car payments will be before you purchase a car, will allow you to carefully gauge whether you can afford to purchase the vehicle. It will also help yo..., 2019 Colorado not reading temp and fan is running - when the truck is running there is no temp reading and the fan is running even when shut off ... I have a 2006 chevy colorado work truck 2.8l thermostat was reading below normal and check engine light was on so i replaced it with a duralast. Now it's reading a little above normal about 215 w, 4211 posts · Joined 2017. #4 · Oct 3, 2021. Dealer warranty repair is a 12/12000 warranty on the parts and labor. Contact GM CS and complain. Go to a different dealer, you'll need the original repair paper work. 2017 Colorado ZR2, Deepwood Green Metallic Ext Cab (LGZ) Nitro 4.10's. 33" Falken Wildpeaks., 5749 posts · Joined 2012. #4 · Sep 19, 2019. P0446. The EVAP system is detecting a vacuum condition when the system is set to "vent". Could be a stuck vent solenoid or defective pressure sensor, or a blocked canister or vent line. Temp gauge dropping to zero. There is only one temp sensor., Temp gauge stopped working!! Help! Ok guys just got done changing the tstat and flushing coolant. I was throwing a CEL the other day and got it checked and it came back as coolant temp sensor. I replaced that and CEL went away for a day and back on again, I assumed it only went off bc of the battery being unhooked while putting it in., Solution: Set the heater to its maximum setting, remove the coolant tank cap and fill it to the proper level. Start the engine with cap still open and let the engine idle for a few minutes. If the coolant level should drop as the thermostat opens, top it up as necessary. This should bleed off the air bubble., R.I.P 2004 Chevrolet Colorado reg cab Victory Red ZQ8 2.8L/4.8L..used to be 5spd...now its a MN12 T56!!! 6 speed H3 rear disk brakes, custom backing plates, 09 fronts Imported 2004 Chevrolet Colorado LS Victory Red ZQ8 3.5L Auto/ repowered with 4.8L