Stalls like rev limiter is coming on after 1/4 throttle!!!!!

Asked by Nov 07, 2008 at 09:37 PM about the 1991 Chevrolet Lumina

Question type: Maintenance & Repair

I have a 91 lumina and it started stalling while accelerating.  The car runs great but if you give it too much throttle it will start to cut out like its losing spark, if you ease into the throttle it will run fine until you give it too much.  Here is what has been replaced with no change.  ECU fuelpump and relay, tps sensor, map sensor, fuel filter, plugs and wires.  So whats up with this thing any ideas?

5 Answers

8,525

check timing and ensure you have good compression... and we'll go from there... BTW why did you replace all those parts, as in what led you to think they were at fault?

755

The timing on those cars is set by the ECM.

8,525

I stand corrected... Dunno why but for some reason I remember seeing a dizzy on one of those around that model year... oh well...

2,280

Actually it sounds more like you're swapping parts rather than troubleshooting. What you're describing is a typical Cat Converter malfunction. Have you tested it yet? The age of the car would make that the first thing I would have checked. The converter heats up white hot to give the exhaust a secondary burn. When they wear out, they restrict the exit flow of exhaust gases and causes the engine to bog down. That's because the pellets or the honeycomb has fused from the heat and duration. You have two choices; one, go to a quality muffler shop and have it tested. This will cost you some bucks and they will install a new converter. Two, wait until the symptom happens again. At that point, leave the car running and beat the crap out of the converter with a tire tool. If this makes the symptom disappear, you have a bad converter.

2,280

Almost forgot..next time you have a Chevy question, a Chevy forum would work better than a tuner forum.

Your Answer

Lumina

Looking for a Used Lumina in your area?

CarGurus has 170 nationwide Lumina listings and the tools to find you a great deal.

ZIP:

Chevrolet Lumina Experts

  • #1
    90V6RedHotLuminaEuro
    Reputation
    1,180
  • #2
    John Saffrahn
    Reputation
    1,090
  • #3
    11jonny11
    Reputation
    930
View All

Related Models For Sale

Used Honda Accord
1,063 Great Deals out of 60,938 listings starting at $999
Used Buick Regal
173 Great Deals out of 9,183 listings starting at $2,500
Used Buick Century
797 listings starting at $1,661
Used Pontiac Grand Am
1,045 listings starting at $1,899
Used Toyota Camry
1,060 Great Deals out of 70,433 listings starting at $295
Used Chevrolet Camaro
404 Great Deals out of 30,575 listings starting at $3,550

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.