1998 GMC Jimmy Q&A

1998 GMC Jimmy Question: Hard starting at times idles well skips and bucks when starting to drive

Changed plugs . Very hard to start at times , when I get it started it idles well but when I get going it skips and bucks. -
Answer 1
How many spark pluges does your engine have? Then we have a clue as to what motor we are talking about! -
Comment 1
2.3 8 pluger -
Comment 2
Just as i thought! Adjust the carb. check point gap and choke stove. Heat riser may be stuck. Vacuum advance inop. Centrifugal weight springs can be changed so mechanical advance override is prevalent! -
Answer 2
ck fuel pressure, may be to low caused by fuel pressure regulator or pump -