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Chevy Silverado and GMC Sierra Fuel Pump/Fuel System

336 messages, Last post on Dec 07, 2009 at 4:53 PM

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What is this discussion about? Chevrolet Silverado 1500, Chevrolet Silverado 2500, Chevrolet Silverado 3500, GMC Sierra 1500, GMC Sierra 2500, GMC Sierra 3500, Truck

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#241 of 336 stalling problems on 00 chevy silverado by laz38 Oct 14, 2008 (5:09 am)
I have a 00 chevy silverado 5.3 v8 with 180k miles. It stalled once when i was driving, the engine just shut off when i was going 60mph. I figured it was vaporlock when the truck started up 2 days later and drove fine for 4 months till yesterday when the same exact thing happened. I first assumed it was the fuel pump and now am thinking thats what it is again. The truck can start barely sometimes and sputters pretty bad then just dies out after 30 or so seconds. Does anyone know what my problem might be? Replies to this message: kloewen (Jan 19, 2009 1:15 pm) bruce48532 (Jan 19, 2009 2:13 pm)
#242 of 336 Fuel Filter 2008 sierra 1500 by leelee10 Oct 25, 2008 (8:40 pm)
Where is the fuel filter located on a 2008 GMC1500 Xtended cab ?
#243 of 336 service engine soon by dock4me1 Oct 29, 2008 (2:19 pm)
last winter my service engine light came on. code said lean fuel mixture put new fuel filter on did not fix when summer came light quit coming on. now since it has gotten cold again service engine light on again lean fuel mixture. 112,000 miles 4.8 v8 runs great just light comes on. Replies to this message: seafarmer (Nov 01, 2008 4:50 am)
#244 of 336 Re: 1988 gmc sierra 1500 fuel pump electronics [chuckh2] by seafarmer Nov 01, 2008 (4:42 am)
Replying to: chuckh2 (Apr 08, 2006 4:32 pm) Check your ground wire to the fuel pump. My son's had a slightly corroded connection and it had the same symptoms. We sntripped the wire slightly and made a new connection and it runs like new.
#245 of 336 Re: service engine soon [dock4me1] by seafarmer Nov 01, 2008 (4:50 am)
Replying to: dock4me1 (Oct 29, 2008 2:19 pm) Everything I found on this problem for the Chevy Avalanche 1500 relates to the purge value (solenoid) in the fuel system. As I understand, it is a pressure release valve for vapors created from temperature changes. What you're describing is a large temperature change from ambient air temperature to running temperature in the winter. Your dealer or shop can run a smoke test to determine but it runs about $100. Without prompting with my thoughts, my ASE certified mechanic buddy suggested the same thing when I gave him the symptoms. I have yet to change it and noticed my fuel mileage decrease just slightly but it runs good.
#246 of 336 Re: stalling problems on 00 chevy silverado [laz38] by kloewen Jan 19, 2009 (1:15 pm)
Replying to: laz38 (Oct 14, 2008 5:09 am) I'm having the same problem. It will start, sputter for 10-20 seconds and then die and not re-start. Any suggestions? Replies to this message: bruce48532 (Jan 19, 2009 2:13 pm)
#247 of 336 Re: stalling problems on 00 chevy silverado [kloewen] by bruce48532 Jan 19, 2009 (2:13 pm)
Replying to: kloewen (Jan 19, 2009 1:15 pm) Check the fuel pressure regulator, located on top of the engine drivers side mid engine, its about the size of a gulf ball (not the same shape) pull the vacuum hose from it if there is fuel in the vacuum line replace it. As I recall it was $20 plus from the dealer.
#248 of 336 Re: Hard Starting 5.3L [sierraz71] by ttonyh41 Jan 21, 2009 (4:33 pm)
Replying to: sierraz71 (May 21, 2008 10:13 pm) Greetings, I have the same truck and I just started experiencing pretty much everything you have described except for the noise in the fuel tank. Did you ever get the starting problem resolved and if so what did you do to fix it? Thanks much Replies to this message: stryder05 (Jan 22, 2009 5:34 pm)
#249 of 336 max speed by powdercoater3 Jan 21, 2009 (7:03 pm)
new to the group have a 2007 sierra , seems the top speed is 89 mph. doesn't run rough , shift normal,runs somth. just won't go any faster than 89 mph . there is no check engine light . factory equipment 32000 miles dealer take well that all we can do why do you need to go that fast????? ever been on south fl 95 before Replies to this message: rholden1969 (Sep 02, 2009 3:49 pm)
#250 of 336 Re: Hard Starting 5.3L [ttonyh41] by stryder05 Jan 22, 2009 (5:34 pm)
Replying to: ttonyh41 (Jan 21, 2009 4:33 pm) The issues I had with the 93 1500 were a bit difficult to track down. It's been said that this can't happen, but it did. My coil was arcing outside, I had scorch marks on the outside of the case, as well, when the motor was at temp, the ignition module would heat up and cut out. We tested it three time before I checked it hot (not fun by the way). I replaced both of these and have not had any additional problems. I don't know if this will help, but it's something that gets overlooked quit a bit. Hope this helps.

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