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Author Topic: miss question?
96232
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Is it possible for the distributor to malfunction, I have replaced the TFI unit, the coil, the plugs, and the spark plug wires. The car is an 89 GT. It runs like it has a dead cylinder. It intermittantly will run great and cut back to running like crap. I just replaced the coil with a MSD one because the plugs when tested outside the car would spark except for #5 which would intermittantly spark and all the plugs had a weak spark.

Any input would be appriciated,
Thanks
Posts: 118 | From: Pine Grove | Registered: Aug 2009  |  :
Secnd2nun64
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Try replacing the cap and rotor.
Posts: 1460 | From: CA | Registered: Jun 2002  |  :
96232
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Did that about 4K miles ago
Posts: 118 | From: Pine Grove | Registered: Aug 2009  |  :
Secnd2nun64
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Have you done a compression and leak down test on the cylinders?

Are you sure it's spark related? Any type of MSD box on there?

[ May 22, 2010, 04:14 AM: Message edited by: Secnd2nun64 ]
Posts: 1460 | From: CA | Registered: Jun 2002  |  :
96232
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compression test done about a month or two ago all cylinders around 180 psi, no MSD box....
Posts: 118 | From: Pine Grove | Registered: Aug 2009  |  :
BIGBALLFACTOR
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quote:
Originally posted by 96232:
Is it possible for the to malfunction, I have replaced the TFI unit, the coil, the plugs, and the spark plug wires. The car is an 89 GT. It runs like it has a dead cylinder. It intermittantly will run great and cut back to running like crap. I just replaced the coil with a MSD one because the plugs when tested outside the car would spark except for #5 which would intermittantly spark and all the plugs had a weak spark.

Any input would be appriciated,
Thanks
YES THE PICK UP IN THE distributor CAN BE GOING BAD AN CAUSE A MISFIRE
Posts: 6908 | From: okc | Registered: Dec 2006  |  :
96232
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well, its running better wen the MAF is unplugged, so That migh be a problem....
Posts: 118 | From: Pine Grove | Registered: Aug 2009  |  :


 
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