The engine runs poorly with no power when it is cold?

SARAH NARVAEZ

MEMBER
2007 CHEVROLET TRAILBLAZER
100,000 MILES

My vehicle listed above, in the morning starts fast but does run bad after like 2 minutes. We do it three times and press the gas and it will run after the car is up to almost 210 temperature, then we drive it fine but by the next morning it’s doing the same thing.

8 Replies

KEN L

MASTER CERTIFIED MECHANIC
42,840 POSTS

This happens when the engine coolant temperature sensor goes out, but we should run the codes first. here is the location of the sensor just in case you want to change it out. You can get a code scanner from Amazon for about $20.00.

Here is a guide/video to show you how:

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Here is a scanner link:

https://amzn.to/3Qi1SS6

Check out the images (below). Please let us know what happens.

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Friday, September 23rd, 2022 AT 12:02 PM

KEN L

MASTER CERTIFIED MECHANIC
42,840 POSTS

Okay, once the sensor is in place clear the codes and let me know what happens.

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Saturday, September 24th, 2022 AT 10:07 AM

SARAH NARVAEZ

MEMBER
5 POSTS

Okay, crankshaft sensor is on still in morning sounds like it wants to cut off once it’s warm runs good. We have to replace the condenser it had a leak, but we put stop leak for the moment.

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Thursday, October 6th, 2022 AT 4:32 AM

KEN L

MASTER CERTIFIED MECHANIC
42,840 POSTS

Okay, lets service the throttle bore which can cause the problem as well.

https://www.2carpros.com/articles/throttle-actuator-service

Please go over this guide and report back.

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Thursday, October 6th, 2022 AT 11:31 AM