GM 2.8 V6 vs 2.0 4 banger,witch one is more reliable ??

[H. J. Zivnak]

Another good source of spikes is the A/C clutch. Look for a shorted clamping
diode (should be taped to the clutch harness.
-----Original Message-----
From: Shannen Durphey <shannen at mcn.net>
To: diy_efi at efi332.eng.ohio-state.edu <diy_efi at efi332.eng.ohio-state.edu>
Date: Sunday, April 26, 1998 12:07 AM
Subject: Re: GM 2.8 V6 vs 2.0 4 banger,witch one is more reliable ??


>Nothing in the service bulletins.  Doesn't mean there isn't
>an updated part no which includes a fix.
>
>Shannen
>
>TBK wrote:
>>
>> You know, I seem to remember something about a fix kit for alternate
spikes.
>>
>> Good suggestion!
>>
>> You should check with the dealer too.
>> -----Original Message-----
>> From: Shawn Cake <shawnc at shaw.wave.ca>
>> To: diy_efi at efi332.eng.ohio-state.edu <diy_efi at efi332.eng.ohio-state.edu>
>> Date: Saturday, April 25, 1998 9:44 PM
>> Subject: Re: GM 2.8 V6 vs 2.0 4 banger,witch one is more reliable ??
>>
>> >Will Honea wrote:
>> >>
>> >> OK, I've got an '86 Cimmeron with the 2.8 v-6.  Mechanically, it has
been
>> great - 140k miles, still has
>> >> good compression, nice even idle, reasonably nimble considering.
Tranny
>> was gone thru (replaced the
>> >> lock-up switch - PITA!) and everything looked just fine - shop
manager's
>> comment was that it was
>> >> probably good for another 100k or so (grain of salt there).  Injectors
>> are clean, fuel system checks good and
>> >> NO LEAKS!  I've got one huge problem with it that I hope someone can
help
>> with:
>> >>
>> >> It EATS ignition modules.  I've used everything from the dealer's
Delco
>> to NAPA to AutoZone/Checker
>> >> (never will use another Wells part!).  Computer dump shows no faults.
>> Anybody got a clue as to what might
>> >> cause this?  Replaced coil, position sensor, pickup coil, wires, just
>> about everything.  I'm real happy with
>> >> the engine, but this is about to drive me nuts!
>> >>
>> >> Will Honea
>> >> whonea at codenet.net
>> >
>> >
>> >Put an oscilloscope on the power supply leads to the ognition module.
>> >If you see some spikes or extreme levels of RFI .... there is your
>> >problem.
>> >