INTERMITANT VACUUM LEAK

1994 GMC C2500

Tiny

denny hemmingsen

September, 28, 2010 AT 11:33 PM

Engine Performance problem
1994 GMC C2500 V8 Four Wheel Drive Automatic

old gas smell vacume leak onlly sometimes othertime3s hits on all 8 runs good suspect electric driven vacuum leak don't have analizer any guesses? This is a 454ignition is good new plugs wires module etc

FOUND 1198 RELATED QUESTIONS

1 Answer

Tiny

mhpautos

September, 29, 2010 AT 6:49 AM

Hi there,

Thank you for the donation,

Can you hear a vacuum leak? If so a small amount of starter fluid sprayed around any suspect leak will pick up the revs, you do not have to drown it, less is better for this test, see if you can identify the leak, let me know how you get on.

Mark (mhpautos)

Please login or register to post a reply.

Engine Oil Change and Filter Mini Cooper
Engine Oil Change and Filter Scion xD
Serpentine Belt Replacement Mercedes Benz ML
Oil Change and Filter Chevrolet Tahoe 2015
Engine Oil Change and Filter Chevrolet Cruze