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vstech_gw

Mechanic question. new motor will not run smooth

vstech
18 years ago

it backfires uphills and when it warms up the motor cannot take even partial throttle.

I had the long block professionally rebuilt down to the cam berrings.

I had the heads built as well.

I installed the heads, and set the timing etc.

I am thinking it is in the rocker arm settings, but I would like someone to leave agreement to that before I delve much deeper.

I also get a trouble code on the dash, I have not checked what it is, but it could be from the extra fuel unburned...

this is an 1989 Chevy Astro v6 4.3 L motor.

looking forward to using this thread.

John

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