Engine stalls when I give it gas

EMILYRABBITREYNOLDS

MEMBER
1999 CHEVROLET S-10
2.2L
4 CYL
2WD
MANUAL
111,179 MILES

I have changed the plugs, wires, coil packs, fuel pump, crank sensor, cam sensor. New oil pan, MAP sensor, throttle sensor, idler sensor, fuel sensor and injectors. It is still not running right. It starts and it idles around 3,000 rpm's and then you give it the gas and it shuts off. I also put a new fuel filter on it.

3 Replies

STEVE W.

MECHANIC
13,003 POSTS

Was the high idle and shutting off the original reason for all the parts changes? The high idle sounds like a large vacuum leak. Could even be from the brake booster so you would not hear it under the hood. When you step on the throttle how does it shut off, real fast or does it act like it is starving for fuel?
To look for a hidden leak you can go around the hoses and intake with a can of starting fluid, spray a small amount at each hose and its ends, listen for the engine to rev and drop back. Unplug the brake booster hose and block the end of the line. What did the engine do?

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Tuesday, December 11th, 2018 AT 8:56 PM

EMILYRABBITREYNOLDS

MEMBER
2 POSTS

No it had a miss and I was trying to fix it and then it started doing that. Now I cannot even drive it. Thanks I will try that. Also it sounds like it is running out of gas.

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Tuesday, December 11th, 2018 AT 10:00 PM

KEN L

MASTER CERTIFIED MECHANIC
42,973 POSTS

To me it sounds like a weak fuel pump let check the pressure by following this guide. You can rent a fuel pressure gauge for free at the parts store.

Pressure should be about 52 to 56 PSI.

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

Please run down this guide and report back.

Cheers, Ken

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Friday, December 14th, 2018 AT 1:58 PM