Duramax Lifetime Supporter
Join Date: Oct 2016
Location: Maurice, LA
The tip may have burst and now is larger in diameter than the hole it slides into. What you DO NOT want to do is break off any portion of it and have it fall into your cylinder. If you start the engine with it in there it cn have disastrous results.
I believe if that happened then the only way to safely remove it would be to pull the head. A tedious and expensive proposition.
Better to screw it back in. I read a thread where someone put a 4.5 Ohm resistor in the GP lead and grounded it, fooling the GPCM into thinking it was there and working. The fact is your engine does not need the GPs to start except in the coldest of conditions
2008 Silverado 2500HD CCSB LTZ Diesel
FASS 95 Lift Pump (with Baldwin filters), Edge Insight CTS Monitor on a Windshield Mount, Nicktane Fuel Filter Adapter w/ CAT 306-9199 UHE tertiary fuel filter, Bilstein 5100 Stock Height, Bushwacker Bed Rail Caps, AMP Research Bedstep, Fumoto oil drain valve, Dorman PS Oil cooler, Pioneer AVIC 7200NEX GPS/Stereo, Air Lift LoadLifter 5000 Air Bags.