Having problems with your 1997 GMC Jimmy ?
I have a 1996 chevy 5.7 vortec engine idles high at 1000 and when you open throttle fully it has like a misfire no power
This could be anything from a bad vacuum leak to bad ignition coil to spark plug wires to distributor cap and rotor or ignition coil. From the sound of this I would look to the vacuum leak or the EGR.
Repair Help & Product Troubleshooting for 1997 GMC Jimmy
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