check the plugs.replace them if you havent.wires should be ok too.coil pack must be in good shape.if all this is done then you must look at your throttle body.if this is dirty and blocked your engine will run very bad on idle and under load.
1999 Suburban, 5.7L loss of power then, it seems to run fine then loses power again. Now if you try...
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1999 Suburban, 5.7L loss of power then, it seems to run fine then loses power again. Now if you try to give throttle it knocks and pings and wants to die. Light throttle will make it go a little. I just replaced the cam position sensor about 1000 miles ago and fuel was just changed too. No check engine light.
My fuelpump relay does not work properly, when I get to a stop sign the van start shaking like is...
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My fuelpump relay does not work properly, when I get to a stop sign the van start shaking like is about to shut down,I took a look at the fuse box and that particular relay got a cable going some place else, what can I do?
My 99 Camaro starts and runs fine but on occasional (about every 6th time) itis started it will turn...
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My 99 Camaro starts and runs fine but on occasional (about every 6th time) itis started it will turn over but not crank. If you wait approx 5 minutes and retry--it will start. Also, reduced engine light comes on occasionally..dealer has no idea whats wrong