Engine Performance problem
1990 GMC C1500 V8 Two Wheel Drive Automatic 255000 miles
My check enigne light comes on after I have driven for a while. Once I stop its goes out, when I start back up and drive for a while it comes back on. How do you do a diagnostic test on a 90 GMC P-U, or any ideals.
have the same problem?
Monday, March 23rd, 2009 AT 4:54 PM