Having problems with your 2002 GMC Sierra 2500HD ?

Multiple misfires at 2500 rpms /Going upgrade @ about 85-90 degrees and if I step down on the gas feed it drops another gear and the problem get worse. Do you have any thoughts ? Lonnie.

Posted / edited by AnonymousUser on : 26-02-2018

Answers :

Lonnie it could be quite a few problems. I will name off a few .
\015\0121. If vehicle has not been tuned up in a while it could use .
\015\012a) spark plugs
\015\012b) Plug wires
\015\012c)distribitor cap+ Roter
\015\0122. You may need to change out fuel injectors . If you havnt done any of these things in a long time (over 12 months) they are probably the problem and if it isnt the problem you didnt waste any money because they needed to be changed out anyway. I hope that you rate my answer because if not i dont get credit for them. Thanks and have a blessed Day.
Repair Help & Product Troubleshooting for 2002 GMC Sierra 2500HD

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