still stumped timing or ?
July 27th, 2012, 8:27 PM
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still stumped timing or ?
1996 gmc/g3500/5.7 tbi still cant get rid of knock, engine idles great but put it in drive and there is no power and the engine starts knocking. Talked to a mechanic and he said there is a crankshaft position sensor on it but I looked the engine over from top to bottom and there isnt one. This engine is in a used ryder truck that the did modifications to, any body got any ideas
July 30th, 2012, 10:04 PM
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Finally figured out that the vin number says its a 96 but actually its a 95 motor, Put a timing light on it and disconnected the brown wire with black stripe, which was at the distributor, and the timing went from 8 degrees advance to 0 degrees advance. But when you increase rpm the timing advances 4-6 degrees, Is this a distributor issue or timing chain, the timing doesnt jump around it stays rock steady just advances a little which would explain why there is no power its advancing to far and causing the engine to knock and lose of power
July 30th, 2012, 10:14 PM
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Finally figured out that the vin number says its a 96 but actually its a 95 motor, Put a timing light on it and disconnected the brown wire with black stripe, which was at the distributor, and the timing went from 8 degrees advance to 0 degrees advance. But when you increase rpm the timing advances 4-6 degrees, Is this a distributor issue or timing chain, the timing doesnt jump around it stays rock steady just advances a little which would explain why there is no power its advancing to far and causing the engine to knock and lose of power
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