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Old July 22nd, 2015, 10:31 AM
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97 5.7 Vortec- injectors and poppet/spider issue

Old August 16th, 2017, 5:25 AM
  #71  
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Hey there, with everything you replaced I'd be willing to bet it's the PCM, if you knew someone who would let you borrow one you could find out. The reason that's my guess is I read a while back that when an injector goes bad after a while it burns out the PCM controls then the injector stays open or partly even when the engines not running. If you want to check take the upper plenium off remove an injector from the intake be careful & get a friend to switch the truck don't crank it just switch it make the fuel pump run, if any of the injectors run or trickel it's probably the PCM or ECM think there the same thing. Let me know what you find out. Sorry I didn't notice that you said the previous owner had tried a PCM but sense you replaced the spider after he tried that I would go ahead and try another PCM again it can't hurt.

Last edited by Mr camshaft; August 16th, 2017 at 5:40 AM.
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Old April 17th, 2018, 10:43 PM
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Default 1997 GMC Sierra gas leak issue

have a 97 GMC Sierra extcab sb ss. Recently had a cat code for bank 2. Told cats needed to be replacec. Cleared codes and fixed cats. Then the truck started stallin like no fuel. Now it will not start, cranks just no start. While taking iff tb cover noticed gas pooling where fuel lines join fuel regulator. Can this be caused ny clogged injectors or is regulator at fault??
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