When I turn on the air conditioner the idle pulses and sometimes the engine dies
Hello
The engine
and transmission in this cars drive train are fully
electronically controlled by a computer called the PCM (Power Train
Control Module). Whenever a problem like this occurs the computer
stores a record of the problem (there are of course some exceptions
to this, like the fuel pump for instance) in the form of a fault code
in its memory, to read these fault codes you must have the systems
memory scanned with a special tool. Once the fault code(s) are read
you then must perform the appropriate diagnostic testing to find and
resolve the problem(s) DO NOT REPLACE ANY PARTS UNTIL THE
DIAGNOSIS & TESTING IS COMPLETED.
How would you do a tune up on a 2004-2005 trailblazer ls i6? I have an 05 LS that I have had for going on 5 yrs that I've chased issues in the entire time. It runs rough and sluggish..the volt gage bounces from half way (14 I think) to slightly above and then back to half way always ..started a year ago when it started running sluggish...runs rich all the time..2nd air injection trips on occasion but once reset it's gone for months at a time...replaced... Front main seal & harmonic balancer, vvt, coils 3x, 3rd water pump...cleaned tb & relearned..iat, maf/map whichever one these things have that sits by plenum...exhaust man, plugs, O2 sensors however the p code has never gone away, straight piped the cat trying to find this O2 issue...always gives me the 5 voltage and heat po codes for O2 & nothing has helped...just replaced the heater resistor..the shift solenoids inside by shifter are new and the 4wd actuator on the tcase is new...only thing that's never been cleaned or fixed is the fuel pump and filter which are both in tank and a pain as we all know...I'm missing a major component to this puzzle to get it running like it should..oh also on the 4th instrument panel as well....any suggestions would be awesome! I'm gonna end up getting rid of it because it's become too unreliable running this poorly & don't know how to tackle the issue anymore! Help please!?
P55 code
i think my reasoning is the evaporation canister?!
When i turn my ac heat on it idles and dies alot.
What vehicle ? same as above ? And is that p0055 , has to have 0's in there .
p0455 ?
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SOURCE: 2002Chevy trailblazer engine cuts off when heater & ac is on
remove the airintake boot and clean throttle butterfly with a rag and carb cleaner
SOURCE: Rough Idle 2002 Trailblazer 4.2L could it be the
Clean throttle body first, make sure you disconnect battery foe about 30 minutes so PCM can relearn to cleaned throttle body.
SOURCE: My 2004 Chevy Trailblazer dies when I turn on the air conditioner
just check weather all spark plugs are ok, even if one misfires then turning ac on will stop the engine. during motion the ac manages to get the power from other plugs. i hope this solves ur problm.
SOURCE: 2002 Chevy Trailblazer idle down cut off when heater or AC is on
most of the time computer just needs to relearn itself. should straighten itself out after a drive.if not try cleaning the throttle plate
SOURCE: 2002 chevy trailblazer has rough idle
it could be an o2 sensor. it could also just need a tune up
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