L
Lawrence Mackey
Guest
On my '95 Riviera, trouble codes indicate problems with the crank and cam position sensors.
Buick dealer diagnosis indicated problem possibilities are cam sensor, crank sensor, timing chain, cam magnet, harmonic balancer, or wiring harness. Dealer wanted $1500.plus dollars to repair. I didn't want to spend big bucks on this car, so I did the repairs myself in my spare time over a two month period. I replaced everything mentioned above except the wiring harness, which I examined visually and it looked ok. The end result, (after a lot of hard work), was the problem was not fixed. The same trouble codes are still there, and the engine runs the same as it did before the repairs,(starts ok but stumbles a little under certain load conditions).
I'm told thats because its running in "open loop" mode due to no cam signal being present. I just had it diagnosed at a different Buick dealer who came up with the exact same diagnosis as the first dealer, (the replacement of all of the parts that I already replaced). Somehow I think
something is being overlooked. Anybody have any suggestions?
Buick dealer diagnosis indicated problem possibilities are cam sensor, crank sensor, timing chain, cam magnet, harmonic balancer, or wiring harness. Dealer wanted $1500.plus dollars to repair. I didn't want to spend big bucks on this car, so I did the repairs myself in my spare time over a two month period. I replaced everything mentioned above except the wiring harness, which I examined visually and it looked ok. The end result, (after a lot of hard work), was the problem was not fixed. The same trouble codes are still there, and the engine runs the same as it did before the repairs,(starts ok but stumbles a little under certain load conditions).
I'm told thats because its running in "open loop" mode due to no cam signal being present. I just had it diagnosed at a different Buick dealer who came up with the exact same diagnosis as the first dealer, (the replacement of all of the parts that I already replaced). Somehow I think
something is being overlooked. Anybody have any suggestions?