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Chevy S10 - GMC S15 and Sonoma Fuel Pump and Fuel System

49 messages,  Last post on Nov 16, 2009 at 1:02 PM

You are in the Chevrolet S-10 & GMC S15 Sonoma Forum. Your Host is kcram

What is this discussion about? Chevrolet S-10, GMC Sonoma, Truck

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#6 of 49 @2001 Oldsmobile Alero- Gauges by ken38 Jul 17, 2007 (10:58 am)
Problem #1 Turn signals lights work most of the time and sometimes do not. I understand it is a manufacturer problem. Does nayone had this problem and know how to fix this?   Problem # 2   "Trac On" light and several other instrument panel lights come on and stay on for a while and then goes off. All mechanical systems seem to be working fine otherwise.   Anyone knows how to fix this problem?   Thanks for your help!
#7 of 49 Gear shifting--2001 Chevy S-10 by ken38 Aug 15, 2007 (6:19 pm)
Gear specialists;   I bought my 2001 S-10 , 4.3 liters on October 2001. Over the years I found that I had to accelerate for a long time before the transmission shifted the gears.   Quite recently, August 5, 2007 I found that the gear shifting is smoother after I changed the oil.   Boy, it is more fun to drive my s-10 now. It was a nuisance drivinig before when it was taking a longer time to shift, which i though was normal for the S10 since i bought it.   What might have caused this shifting problem?   Thanks fo yor help!   Ken 38 Replies to this message: kcram (Aug 16, 2007 5:08 pm)
#8 of 49 Re: Gear shifting--2001 Chevy S-10 [ken38] by kcram HOST Aug 16, 2007 (5:08 pm)
Replying to: ken38 (Aug 15, 2007 6:19 pm) Ken, you want the S10/S15/Sonoma: Transmission Problems discussion. Remember to use the make and model search in the left margin to find the proper discussion for your vehicle and problem area.   kcram - Pickups Host
#9 of 49 Fuel pump problems by bsmith26 Sep 18, 2007 (7:54 pm)
To anyone who can help me,   I had problems with the original pump about 3 months ago so i bought a new assembly unit on ebay (i know bad mistake but I'm broke) and replaced it with the new one. Well i seem to have another problem. When i get on the gas and punch it to the floor, The truck will just either bog down and backfire or just stay at the speed i gas heavy at. But when i slowly get on the accelerator it will get up to speed fine. I've changed the fuel filter to see if it could have been the problem but it still happens. Could i be looking at another bad fuel pump or is it something else?   Can someone help? Thanks, Brian My S10 is a 2000 v6 2wd vin# "W" for what its worth. Replies to this message: gonogo (Sep 19, 2007 7:58 am)
#10 of 49 Re: Fuel pump problems [bsmith26] by gonogo Sep 19, 2007 (7:58 am)
Replying to: bsmith26 (Sep 18, 2007 7:54 pm) Have your fuel pressure checked, that will rule out the ebay pump.
#11 of 49 fuel pump relay by welder007 Dec 26, 2007 (3:22 pm)
came out of the store the engine turned over ,not start.check for fire with plug wire and screw driver. and had spark. had similar scenario w/ 3/4 ton 94 chevy. ended up changing the fuel pump and relay. can't locate relay on sonoma to check or any other imput would most welcome Replies to this message: hoodlatch (Dec 26, 2007 6:38 pm) welder007 (Dec 27, 2007 5:44 am)
#12 of 49 Re: fuel pump relay [welder007] by hoodlatch Dec 26, 2007 (6:38 pm)
Replying to: welder007 (Dec 26, 2007 3:22 pm) What year is your Sonoma? The pump relay on my 92 S10 is on the firewall.
#13 of 49 93 sonoma by welder007 Dec 27, 2007 (5:44 am)
Replying to: welder007 (Dec 26, 2007 3:22 pm) i've been told there 4or5and all are labeled. i found 2 to the right of the brake booster at least they look like they may be relays i haven't figuire out how to remove they without damage
#14 of 49 93 sonoma fuel pump/relay by welder007 Dec 28, 2007 (7:42 am)
i happened upon a good mechanic. who accuatlly gave me good advice. to check the relay. 2 relays located onthe fire wall to the right of brake booster. turn key on,bang on the gas tank. turn key off and repeat. no start switch the relays and repeat the previous step. mine started right up ,so i switched back relays. repeated previous steps. it started again. safe for me assume pump was bad. got new fuel pump and install turn the key nothing but the sound pump and relay dropping after releasing ingnition. pulled the pump set it in coffee can of gas and hooked a tube to the biggest line onthe tank flange ran two wires some six feet long. telephone wire works well. conennect one lead going to the pump one to black. connect other end to battery charger set on 2 amps. exstreme caution must be excersised not two create any sparks. just thought i should throw that in. turned battery charger on pump started and ran but did not pump. back to the parts store. to exchange the pump. its a new day to use up my vaction time but got to have the truck for work. will follow up on the outcome.
#15 of 49 fuel pump by samj3 Feb 08, 2008 (7:59 pm)
i took the filter of the inline fuel line and turn the key on but didn't get any fuel to pump out does this mine my pump is bad Replies to this message: gonogo (Feb 09, 2008 6:31 am)

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