General Category > GM Tech Questions and Answers

PCV valves

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EDNY:
Thanks for that info, I have been manually cleaning my injectors (12v battery & throttle body cleaner). Learned that using one of those laser thermometers on the cylinder exhaust tubes helps to ID bad injectors via temperature along with the ohm meter.

I may need a good source for injector rebuilding in the future.  Send me a PM with any TPI parts for sale.

Ed

themoose:
Jef

While we're talking about controlling crankcase pressure how about some giving us you insight on the various piston rings that are now available and how they can help or hurt engine performance especially when rebuilding an early engine.

Moose

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