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gmwrench_head · 05-21-2009, 09:48 AM

we have in our dealership a 1999 g-van with a stumble stalling runs rough no codes problem we have gone through and replaced pcm due to water intrussion and repaired all the pins that had been corroded we have also checked fuel pressure and have replaced the fuel regulator due to the only time it ran better was when we restricted the return fuel line, we inspected the exhaust for plugged cats they are ok, checked and load test grounds to the pcm.cleaned maf sensor did not help. the vehicle has no codes in it anywhere.

05-21-2009, 09:48 AM	#1 (permalink)
gmwrench_head Registered User Join Date: May 2009 Posts: 1 OS: xp	1999 g van stumble stalling issue we have in our dealership a 1999 g-van with a stumble stalling runs rough no codes problem we have gone through and replaced pcm due to water intrussion and repaired all the pins that had been corroded we have also checked fuel pressure and have replaced the fuel regulator due to the only time it ran better was when we restricted the return fuel line, we inspected the exhaust for plugged cats they are ok, checked and load test grounds to the pcm.cleaned maf sensor did not help. the vehicle has no codes in it anywhere.