Having problems with your 1988 GMC C2500 ?

1988 gmc truck 5.7 l

\015 I'm needing some help ,After I've done alot work on this truck it still seems to run rough and sputters while crusing down the road. I've replaced cap,rotor pick-up coil, plug leads,plugs and coil. I've never gotten a code,But the check engine light comes on once in a while\015 Posted / edited by AnonymousUser on : 11-12-2017

Answers :

Check or replace your injectors if it is a TBI, run some injector cleaner through your gas tank if you have a MFI or CSFI injection system.
Repair Help & Product Troubleshooting for 1988 GMC C2500

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