What causes a Chevy Trailblazer to stall at idle?
We notice the back AC was on and the truck turns off even when we turn on the ac or heat on the front it shuts. Off what could be the problem. Answer: Stalling with the A/C on at idle is usually caused by carbon build up in the throttle body. The throttle body bore and plate should be cleaned with a carbon cleaner spray.
Why is the clutch not kicking on on my Chevy Trailblazer?
Bypassed the low pressure switch with no change. With AC turned on, the clutch on the compressor does not kick on. The fuses all looked good for everything ac related. What should be my next diagnostic steps, jump relay, check power at the compressor plug?
Why is the AC not working on my 2006 Trailblazer?
My 2006 trailblazer has not had functioning heat since I bought it last summer. So far I have verified it has pressure in the system (tried to add an autozone bottle but saw the system was already full). Found a cut wire at the low pressure switch, installed a new pigtail with no change.
When does the a / C compressor engage, the engine stalls?
When the A/C compressor engages at idle in park or neutral every five to ten seconds the idle drops and will either almost stall the engine or occasionally does stall the engine. This happens in drive as well, and when driving, since the rpm’s drop and come back up, the vehicle surges at low speeds.
We notice the back AC was on and the truck turns off even when we turn on the ac or heat on the front it shuts. Off what could be the problem. Answer: Stalling with the A/C on at idle is usually caused by carbon build up in the throttle body. The throttle body bore and plate should be cleaned with a carbon cleaner spray.
When the A/C compressor engages at idle in park or neutral every five to ten seconds the idle drops and will either almost stall the engine or occasionally does stall the engine. This happens in drive as well, and when driving, since the rpm’s drop and come back up, the vehicle surges at low speeds.
When does the a / C compressor engage at idle?
Here is where the problem started: that night after changing my battery, I went to use the defroster. When the A/C compressor engages at idle in park or neutral every five to ten seconds the idle drops and will either almost stall the engine or occasionally does stall the engine.
What causes a car to stall with the a / C on?
Answer: Stalling with the A/C on at idle is usually caused by carbon build up in the throttle body. The throttle body bore and plate should be cleaned with a carbon cleaner spray. Electronic throttle systems are very common to this. Watch this how to clean throttle video.
Do you need Spotless throttle bodies on a trailblazer?
The Trailblazer throttle bodies need to be near spotless for it to make a difference. All inside and behind the throttle blade, etc. Yes i removed it and cleaned it spotless, you could eat off it.
Where is the throttle position sensor on a Chevy Trailblazer?
Your Chevy Trailblazer uses a series of complex sensors to report what is going on to the ECU. The ECU then uses this information to adjust the timing, air fuel mixture, and more. When one of them goes wrong, it can lead to stalling for sure. Throttle Position Sensor – The throttle position sensor is typically located on the gas pedal.
How long does it take for GM throttle body to relearn?
If you don’t do a relearn procedure, the PCM will “hunt” for a new baseline idle. It will eventually learn it on its own, but it may take over a week of driving, during which time you will experience high and low idle speeds and possibly rough idle. 1) Start the engine and let it idle in park for 3 minutes.
What causes a Chevy Trailblazer engine to stall?
If your Chevy Trailblazer’s engine timing is off, it’s going to stall out, misfire, and altogether not run properly. Here are some of the more common causes of an engine timing problem: VVT Problem – Many modern engines are equipped with Variable Valve Timing.
Your Chevy Trailblazer uses a series of complex sensors to report what is going on to the ECU. The ECU then uses this information to adjust the timing, air fuel mixture, and more. When one of them goes wrong, it can lead to stalling for sure. Throttle Position Sensor – The throttle position sensor is typically located on the gas pedal.
The Trailblazer throttle bodies need to be near spotless for it to make a difference. All inside and behind the throttle blade, etc. Yes i removed it and cleaned it spotless, you could eat off it.
How to do throttle body re-Learn Chevy Malibu?
1) Start the engine and let it idle in park for 3 minutes. During that period the idle may be higher idle than normal. 2) After 3 minutes, turn the engine off and leave it off for 60- seconds. 3) Start the engine again and let it idle in park for 3 minutes one more time. During these run periods you may see a check engine light.
Why is the air filter on my trailblazer not working?
If you have reason to suspect that your Trailblazer’s air filter has not been changed in a very long time, or if you have recently been driving in tough conditions, it may be worth taking a look at it. It could be so clogged that there is not enough air getting through for quality idle conditions.
What makes a 2002 Chevy Trailblazer make a loud noise?
2002 Chevy Trailblazer struggles to shift in first gear and makes a loud noise like I was revin the engine and the rpm goes buts, then it takes until I get to the next light and needs to move out again. How do I fix that? Well, i can’t really understand what your problem is, but it sounds like a transmission problem and an internal engine noise.
What kind of engine does a 2002 Chevy Trailblazer have?
2002 Chevrolet Trailblazer EXT 4.2L Engine. It died on me the other day I got a boosts. Later that day I got a new battery. They check the alternator and its fine. We notice the back AC was on and the truck turns off even when we turn on the ac
Why is my Chevy Trailblazer running rough at idle?
Really, your Trailblazer will be running rougher at any RPM, but a misfire will be most pronounced at idle. Spark Plug Wires – While not every model and engine combination of vehicles today comes with spark plug wires (a lot are now coil on plug), if your Trailblazer happens to have them, they can go bad and cause a rough idle.
If you have reason to suspect that your Trailblazer’s air filter has not been changed in a very long time, or if you have recently been driving in tough conditions, it may be worth taking a look at it. It could be so clogged that there is not enough air getting through for quality idle conditions.
Why are the spark plugs on my trailblazer not working?
Spark Plugs – One of the absolute most common causes (if not the most common reason that your Trailblazer may be misfiring) is the spark plugs. Although most modern vehicles use iridium spark plugs, they still need to be changed at the manufacturers recommended interval.
Why does my Chevy Cruze shake at idle?
You should also feel the shaking more in gear than when you are in park. It would also feel a little wobbly as the gears are shifted. An engine misfire is the most common cause of a shaking idle, and as the engine stumbles and misfires, that should be seen in the tachometer as a drop in RPM.