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Pickups Chevrolet S-10 & GMC S15 Sonoma Chevy S10 - GMC S15 and Sonoma Starting problems
193 messages, Last post on Oct 31, 2009 at 3:41 PM
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Replying to: tomyg (Jan 15, 2008 1:38 am)
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Replying to: adam6479 (Jan 15, 2008 1:07 pm) My problem only coincidentaly occurred after I had it serviced for an engine light on and poor idling. They checked/"cleaned" the EGR valve (said it may have been sticking open - which you'll read causes poor idle or even failure to start), replaced the fuel filter (said it was extremely clogged). The truck immediately ran great, but the next day I experienced my first "no-start". When we experience the no-start, some of us do two things: 1) keep trying until we eventually wear the battery down, at which point calling for a jump start which somethimes gets the truck going, and thus leads us to mistakenly think its a battery power issue, or 2) keep trying until we flood the engine, which is when you smell raw fuel and it takes anywhere from 1/2 hour to a couple days later when you try to start it and it gets going like no problem. Anyway, I took it back to the shop that week and they checked the fuel pressure (apparently was at 36psi), so a new fuel pump was put in. Then it started running poorly again(maybe the EGR that I did not replace), but the truck started alright for about a week, until this morning. After trying to start it a few times in about 10min span, i finally let it sit for about 25mins, and then attempted again to start it. This time, after two extended attempts she finally wound up and caught - just as the Road Service Guy was pulling up to attempt a jump start. I haven't figured it out yet, but this weekend I'm going to put in a new set of spark plug wires. A few times in the past the spark plug wire change has done the trick when I had poor idle and performance. As it was explained to me, they get crappy over time - especially the cheaper ones - and what happens is they become more prone to taking on moisture. This is why a warm vehicle (or one thats only sat a few hours) starts right up - because the wires are nice and dry and delivering full power spark. You let it sit a couple of days and the suck in the humidity and are cold and you have trouble starting on the first attempt - and then you end up in situation #1 or #2 i described above. I'll let you all know if it works.
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History of problem Two weeks ago my service engine light started flashing at a rapid pace. The engine started acting like it was fuel starved or not getting proper spark. I managed to limp home by taking automatic out of gear at stop lights and keeping foot on gas to keep revs up. When I got home I turned engine off -tried to restart--would not start-would crank but NO start. Had it towed to local garage-they said their code scanner could not get ECM box to work or could not get codes. Replace ECM box with new one-still same thing. Checked fuel pressure-OK-checked spark to plugs -OK-checkd voltage to injectors-not ok no voltage at all. Have tried everything--this 4.3 V6 does not have a crankshaft sensor --has distributor--does anyone have any idea at all what the problem is??? thanking all in advance Mike  http://theconservativearmyforumreview.podomatic.com/ |
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I have a 2000 S-10 , 4.3l. 135000mi. Bought this truck new, about 3 years ago it wouldnt start. Turn the key and just a click. Thought it was a bad battery, replaced it and still no start. All the dash lights worked, normal buzzers and sounds, but when you turn the key you just get a click. Starter never even tried to engage. Took it to my mechanic and he said it was a small wire that was loose, and it started fine from then on. He never showed me this wire. Well now its doing this again. Again, I replaced the battery, also have replaced the starter. The fuel pump was replaced 14 months ago. My old mechanic is gone now, so I cant ask him. The local repair shop says he is finding nothing wrong, and no computer codes showing anything. HELP !!!!!!!
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Replying to: nitrate (Oct 10, 2007 4:32 pm) |
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| I have a 2000 gmc sonoma pick up. At times it will not start. I get absolutly nothing. No click, no lights, no sounds, nothing. It won't start with a jump, still nothing. I have a new battery and starter. But, if I disconnect the positive battery cable from the battery and then reconnect it, it stars right up everytime. Any ideas? | |
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Replying to: mspinder (Feb 12, 2008 7:54 pm)
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Replying to: gonogo (Feb 13, 2008 9:29 am) |
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Hi there is a sevice bulletin 00-06-04-003B rought idle/service engine soon light. unstick and clean central sequential fuel injection poppet valves. it is covered under warranty for 10 years or 200,000 miles. i kept getting code po300 and this fixed it. hope this will help someone. |
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Replying to: mspinder (Feb 12, 2008 7:54 pm)
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