6.0 liter suburban stalling?

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6.0 liter suburban stalling?

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Chevrolet >> Chevy Trucks, Vans & SUV's >> Suburban >> 6.0 liter suburban stalling?

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6.0 liter suburban stalling? - 11/12/2006 10:37:58 AM

Tommygunz

Posts: 52
Joined: 11/10/2006
Status: offline

Hello, you might recognize me as the guy who just bought an 01 suburban with the 6.0 liter motor. I have run accross a small issue. I am hoping like crazy it is not the fuel pump, but it could be. Every once in a while during the day when I start the truck, it stumbles and then stalls. It will do this several times before actually starting and holding its RPM. I plan on changing the fuel filter. Has anyone else had an issue like this with this motor, or is mine unique? I also plan on finding the TPS, an MAP and cleaning them.

_____________________________

2007 Dodge Ram QC "Big Horn" 5.9 CTD
2005 Dodge Stratus

Post #: 1

RE: 6.0 liter suburban stalling? - 11/12/2006 1:29:41 PM

ZX1100F1

Posts: 2429
Joined: 8/1/2006
Status: offline

Tommy other than the obvious check the fuel pressure regulator, if there is fuel in the vacuum hose it is bad and will cause stalling and bad economy.
Bad or clogged injectors also could be source of trouble, run four 16oz bottles Chevron w/Techron cleaner in single tank of gas.

Bad fuel pumps normally cause engine to die and not re-light until it has sat for several minutes or never.

Welcome and thanks for buying GM.

Dave

(in reply to Tommygunz)

Post #: 2

RE: 6.0 liter suburban stalling? - 11/12/2006 7:04:18 PM

Tommygunz

Posts: 52
Joined: 11/10/2006
Status: offline

Loaded up on chevron with techron cleanser as well as MArvels Mystery Oil, it worked wonders in my dodges for lubing and cleaning fuel sysetm, it also helps out a lot if you add it in the crank case, more on that later. Now if someone can tell me where to find the fuel pressure regulator on these trucks that would be super......

_____________________________

2007 Dodge Ram QC "Big Horn" 5.9 CTD
2005 Dodge Stratus

(in reply to ZX1100F1)

Post #: 3

RE: 6.0 liter suburban stalling? - 7/11/2007 5:24:07 PM

vf171

Posts: 41
Joined: 5/24/2007
Status: offline

Sorry to bring up a dead post but I did a search and this is the one I found that is closest to what's happening to my wife's '02 2500 8.1L. She says it only stalls after it has sat overnight or all day at work. Once it warms up (more than 5 miles) it doesn't stall. Today she said it stalled 4 times in a row.

We had the fuel pump replaced at a GM garage about 3 weeks ago. They told me the fuel pump was putting out low pressure (42 psi) and that likely was the problem casuing the stalling. I never went and picked the pump up to verify but these guys have been honest with us for the past 10 years at least. They do quite a bit of business with her family and I don't think they would run the risk of screwing up a great relationship so I don't think they boned us or anything.

I guess I'm wondering if something else could "look" like a bad fuel pump? I will check the fuel pressure regulator as soon as I find it! Half tempted to run the cleaner through it too just to see if it helps. Anyone have any other ideas about this? Much appreciated.

(in reply to Tommygunz)

Post #: 4