Is it possible that a faulty a/c compressor could cause computer problems?

5

Asked by Sep 26, 2015 at 10:16 AM about the 1995 Chevrolet Impala 4 Dr SS Sedan

Question type: General

The car runs fine until I turn on the A/C. After several minutes of running, the engine just shuts off. If I turn off the A/C and wait a few minutes, it will start and run fine. Any thoughts?

6 Answers

8,880

possible, yes. let GM look into it. saw something similar before, unsure about that model and year.

1 of 1 people found this helpful.
5

Thanks. This problem has been driving us crazy.

8,880

Theres two ways to look at it, the engine runs,....................... the engine runs very strong and well............... or the engine barely runs ? Then the load from the compressor activating is going to drag it some, is that all it takes to stall it?..........See that can be a tuneup, the factors measured during a tuneup......or the parts used in previous tunups...........Fuel pressure can be low, although it runs. Base Timing can be set out of spec, although ir runs, and so forth. sensors and controls can cause power loss, although it runs. so a tech has a list of prechecks he does to give a basic look at the maintenance and the age of the parts in use. his experience and knowledge of what can happen comes into play. Books about these systems that have photos and prechecks can save time and years of study for harry homeowner. like chilton, haynes, etc. Gauges, testers and scan tools can be got from parts stores. If you take your vehicle to some low price place to "savemoney" Their menu tune special can consist solely of 4,6, or 8 spark plugs that are not A/C delco. That is not a tune up. that's a spark plug replacement with plugs that might fire. it can get more embarrassing from there. Then the policies and excuses get maddenning. Mr. Goodwrench hangs his rep on an engine that runs right and no a/c compressor can stop it unless there's an electrical problem affecting the computer. There, now I have fully armed you with self help info. and the real truth. Then the a/c function being controlled and wired like it is can have some malfunction

8,880

I would expect a troublecode for it and or a service bulletin that tells Mr. G what to do about it. like a shorted part or the protective loop diode has some issue. the computer reacts to. ........Inspection is worth 10 speculations. high quality parts are worth their price. Chinese junque should be floating somewhere. Delco parts, even though the lab is in singapore, are made to last and actually are as specified. not just similar in appearance

20,085

I've had smaller engines shut off when the compressor was over filled and became over pressurized. I would think that v8 would give in to it but I'd be curious to see your pressures. Compressor diode is always possible, when the clutch let's go there is a surge and it's there to stop it. But I would think it would be a more sudden stall

8,880

The one that stuck out in my memory was a pickup with a v8. one school of thought was compressor diode and the other was poor runability, the correction was not solved that I saw, but tune parts were cheapos and fuel pressure was low. the temp ambient was high and they had no gauges to report ac, so we had suggested professional hands on, as I recall.

Your Answer

Impala

Looking for a Used Impala in your area?

CarGurus has 34,344 nationwide Impala listings starting at $1,100.

ZIP:

Chevrolet Impala Experts

  • #1
    Js08016
    Reputation
    1,960
  • #2
    Tom Demyan
    Reputation
    1,870
  • #3
    Danny Wang
    Reputation
    1,720
View All

Related Models For Sale

Used Honda Accord
1,074 Great Deals out of 74,230 listings starting at $1,100
Used Chevrolet Camaro
441 Great Deals out of 31,709 listings starting at $1,450
Used Nissan Maxima
327 Great Deals out of 21,764 listings starting at $1,200
Used Toyota Camry
1,116 Great Deals out of 86,207 listings starting at $995
Used Nissan Altima
1,372 Great Deals out of 77,644 listings starting at $1,695
Used Chevrolet Tahoe
791 Great Deals out of 41,831 listings starting at $1,987
Used Ford Mustang
581 Great Deals out of 39,806 listings starting at $1,895
Used Ford Taurus
239 Great Deals out of 15,276 listings starting at $1,295

Used Cars For Sale

2018 Chevrolet Impala For Sale
10,387 listings starting at $21,585
2017 Chevrolet Impala For Sale
106 Great Deals out of 6,068 listings starting at $14,863
2016 Chevrolet Impala For Sale
41 Great Deals out of 1,326 listings starting at $12,950
2015 Chevrolet Impala For Sale
46 Great Deals out of 1,554 listings starting at $10,985
2014 Chevrolet Impala For Sale
82 Great Deals out of 2,426 listings starting at $9,700

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.