1994 Chevy S-10

TWISTERORIGINAL

MEMBER
1994 CHEVROLET S-10
4 CYL
2WD
MANUAL

I have a 1994 Chevy S10 pickup. Its a 4 cylinder, 2 WD. It is ********" when accelerating. I think its a vacum leak but I can't seem to find where it is? I did the carb cleaner spray check and could'nt pin point any leaks. I changed the plugs, no problems there. Other than the vacum lines could something else be causing the ********"? It's a drag, even turning up the stereo doesn't help. Ha ha ha! HELP!

Tammy

P.S. My "SERVICE ENGINE SOON" light is now on continuously.

1 Reply

OBXAUTOMEDIC

MECHANIC
3,711 POSTS

Hi Tammy,

First thing to do is pull codes, follow directions below and post codes for farther diagnosis.

To extract a trouble from the computer for diagnostic purposes, the Assembly Line Communication Link (ALDL) connector is used.

Ground terminals A and B with the ignition "ON" and engine not running. The system will enter the diagnostic mode. In this mode, the computer will display a 12, three consecutive times, by flashing the "CHECK ENGINE", "SERVICE ENGINE SOON" or "MALFUNCTION INDICATOR LAMP" or light. A 12 consists of one flash, a short pause, then two flashes in rapid succession.

After 12 is displayed, any stored trouble s will be displayed by flashing the "CHECK ENGINE", "SERVICE ENGINE SOON" or "MALFUNCTION INDICATOR LAMP" light. All s are displayed 3 times each then a 12 will repeat. In the diagnostic mode, the computer will also energize all computer controlled relays and solenoids.