Diesel sluggish

vaman4215 · 01-05-2009, 09:20 AM

Got a 99 GMC with the 6.5L turbo diesel..Had been running great, yesterday started doing something funny...Will start up and run for a while, then get to bogging down as if not getting fuel or the air filter is stopped up, after a few minutes it will just shut off...New fuel pump (lift pump), new fuel filter, and new air filter...Has my injection pump bit the dust?? When it does run it has plenty of power, etc...Got me buffaloed...HELP..I need it running so I can sell it, NEED CASH NOW!!!

leolkfrm · 01-05-2009, 09:54 AM

How maney miles on it? I heard the pumps last an avg of 100,000 mi. sounds like the pump senario

nmw75 · 01-06-2009, 09:47 AM

I have a friend that is a Diesel mechanic at a Mack/Volvo/GMC shop.
He was telling me about all of the GM diesel trucks coming in recently with bad injectors.
He said thats the first thing they check when one comes in. See if it has bad injectors.

leolkfrm · 01-06-2009, 07:21 PM

I believe most of the injector recalls are with the 6.6, the 6.5 was pump problems

01-05-2009, 09:20 AM	#1
vaman4215 Junior Member Join Date: Dec 2008 Posts: 3	Diesel sluggish Got a 99 GMC with the 6.5L turbo diesel..Had been running great, yesterday started doing something funny...Will start up and run for a while, then get to bogging down as if not getting fuel or the air filter is stopped up, after a few minutes it will just shut off...New fuel pump (lift pump), new fuel filter, and new air filter...Has my injection pump bit the dust?? When it does run it has plenty of power, etc...Got me buffaloed...HELP..I need it running so I can sell it, NEED CASH NOW!!! __________________ 89 Chevy S-10 4x2 4.3L V6 Automatic

01-05-2009, 09:54 AM	#2
leolkfrm Senior Member Join Date: Mar 2008 Location: N.Y. Posts: 4,300	How maney miles on it? I heard the pumps last an avg of 100,000 mi. sounds like the pump senario __________________ 4 wheels move the body 2 wheels move the soul B.W.A.I

01-06-2009, 09:47 AM	#3
nmw75 Full Member Join Date: Jan 2008 Location: Maine Posts: 21	I have a friend that is a Diesel mechanic at a Mack/Volvo/GMC shop. He was telling me about all of the GM diesel trucks coming in recently with bad injectors. He said thats the first thing they check when one comes in. See if it has bad injectors. __________________

01-06-2009, 07:21 PM	#4
leolkfrm Senior Member Join Date: Mar 2008 Location: N.Y. Posts: 4,300	I believe most of the injector recalls are with the 6.6, the 6.5 was pump problems __________________ 4 wheels move the body 2 wheels move the soul B.W.A.I

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
My truck is sluggish at wide open throttle.	JohnDog	GMC Truck Forum	7	10-15-2007 09:51 AM
383 is SLUGGISH :(	BryanCregger	Chevy Truck Forum	11	06-25-2007 05:32 PM
2000 F250 acting sluggish	chafuro786	Ford Truck Forum	9	03-05-2007 04:36 PM
Hard starting, sluggish when cold.	prowler40	GMC Truck Forum	2	11-06-2006 08:09 PM
5.4 sluggish in hot weather	lmtms0	Ford Truck Forum	10	06-03-2006 02:06 PM