ENGINE BACKFIRES, I HAVE CHANGED THE SPARK PLUGS, BUT IT DOESNT WORK!
NEWMAN DAVID
MEMBER
2003 ISUZU
205,000 MILES
MY ISUZU KB220 LE, en gine backfires even after changing spark plugs and cables
Thursday, November 17th, 2011 AT 1:52 PM
1 Reply
HMAC300
MECHANIC
48,601 POSTS
Check thecompression and fuel pressure. We have no info on this model so can' t give you a spec. Check firing order of the engine as well. Also check for cracked coil, etc.