2000 6.0L runs rough and stumbles - Page 2 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

fxdxharley · 11-03-2009, 12:56 PM

Quote:

Originally Posted by clinebarger

Im guessing no check engine light? Like posted before the MAF can go bad and not set a light. EGR valve stuck part way open, Vacuum leaks, TPS sensor with a dead spot. If you do have bosch plugs throw them away there junk. Ive always ran NGK V-power plugs there cheap and a good plug never had a problem.

have you checked fuel pressure? Key on engine off 55-62 PSI.

Nope no check light. I've unpluged both the maf and tps and ran it to see if there was a difference none noticed. i do have the bosh platums. How can i check to see if the egr valve is stuck? Never check feul pressure. I hope its good, the pump is only 2 yrs old.

**truckdude239** · 11-03-2009, 02:30 PM

bad fuel pressure regulator I've seen it many time on these

fxdxharley · 11-05-2009, 06:09 AM

Quote:

Originally Posted by truckdude239

bad fuel pressure regulator I've seen it many time on these

Nope, changed that too when it had a hard starting issue.

basemodel67 · 11-05-2009, 12:28 PM

Where is is the regulator on these things? Maybe I should change mine. BTW, when my truck broke a valvespring, the check engine light never came on when I thought for sure it should...

**Shon** · 11-05-2009, 12:55 PM

Quote:

Originally Posted by basemodel67

Where is is the regulator on these things?

If you have a feed and return line on the fuel rail then the little round thing that has a vac line attached to it is the regulator, if you only have 1 line to the rails then it is in the tank, part of the fuel pump assembly.

fxdxharley · 11-07-2009, 06:06 AM

that is correct. it is on the drivers side fuel rail. check and see if it is good is by running the truck or cycle the fuel pump with the key, shut it off then up plug the vac line from it. If gas comes out of the port then it is no good. A nother sure way to tell is if your truck starts hard ie cranks over for a little bit before firing up. the pressure reg is a dealer only item and is just over a $100 bucks.
a broken valve sring wouldnt trip the check light.

**truckdude239** · 11-08-2009, 11:03 AM

i did not think of the valve spring but they are common on these style motors

11-03-2009, 02:30 PM	#27
truckdude239 Senior Member Join Date: Sep 2005 Location: winston-salem nc Posts: 4,606	Re: 2000 6.0L runs rough and stumbles bad fuel pressure regulator I've seen it many time on these __________________ David fuller Click here to help support our board!! 1971 Chevy c-10 with a rebuilt 305 1987 Ford F-150 302 v8 auto - 1993 ford aerostar dads car General manager for Marco's Carwash & lube RIP ESLL

11-05-2009, 12:28 PM	#29
basemodel67 Nor-Cal Joggernuts Join Date: Mar 2009 Location: Shingle Springs, CA Posts: 139	Re: 2000 6.0L runs rough and stumbles Where is is the regulator on these things? Maybe I should change mine. BTW, when my truck broke a valvespring, the check engine light never came on when I thought for sure it should... __________________ Just 'cause I don't know what it is, doesn't mean I'm lying.

11-07-2009, 06:06 AM	#31
fxdxharley Registered User Join Date: Jul 2009 Location: Barrington NH Posts: 72	Re: 2000 6.0L runs rough and stumbles that is correct. it is on the drivers side fuel rail. check and see if it is good is by running the truck or cycle the fuel pump with the key, shut it off then up plug the vac line from it. If gas comes out of the port then it is no good. A nother sure way to tell is if your truck starts hard ie cranks over for a little bit before firing up. the pressure reg is a dealer only item and is just over a $100 bucks. a broken valve sring wouldnt trip the check light. __________________ 2000 chevy 2500 4x4 3dr swb 2000 harley fxdx 2007 honda crf 450x - street legal 2003 honda crf 50- 88cc kit 2005 kawi klx 110 factory moster energy kawi pit bike - sons bike

11-08-2009, 11:03 AM	#32
truckdude239 Senior Member Join Date: Sep 2005 Location: winston-salem nc Posts: 4,606	Re: 2000 6.0L runs rough and stumbles i did not think of the valve spring but they are common on these style motors __________________ David fuller Click here to help support our board!! 1971 Chevy c-10 with a rebuilt 305 1987 Ford F-150 302 v8 auto - 1993 ford aerostar dads car General manager for Marco's Carwash & lube RIP ESLL

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.