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Pickups Chevrolet S-10 & GMC S15 Sonoma Chevy S10/GMC S15-Sonoma: Problems & Solutions 
2018 messages, Last post on Oct 17, 2006 at 9:12 PM
You are in the Chevrolet S-10 & GMC S15 Sonoma Forum. Your Host is kcram
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Replying to: the_big_al (Jul 21, 2006 8:37 pm)
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Replying to: cs_tarheel34 (Jul 21, 2006 8:44 pm)  )
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Okay here is one that I need help on ..... or maybe it's  My normally perfectly running '01 V6 decided to hicup on me today. On my way home from town the A/C all of a sudden quit blowing cold and then I glanced down at my gauges and my temparature gauge was pegged. I mean pegged as far over as it could go. Prior to the A/C blowing hot (it had been blowing ice cold just moments prior) there had been no sign that the vehicle was running hot and I had just checked my gauges for speed etc ect.... I immediatly pulled over and shut down the vehicle. However it didn't seem to be running abnormally. I got out and there was coolant dripping out from underneath the vehicle. The motor/engine bay didn't feel any warmer than usual. Nor did I see or smell anything unusual aside from the coolant coming from underneath the truck. But the overflow bottle was full. I checked the overflow tube, but it was dry hence the coolant wasn't forced into the overflow bottle and out the overflow tube. The coolant draining out was not coming from there. I would like to note that I have just recently had the radiator tanks in the radiator replaced and so the coolant in the vehicle is less than 6 months old. The vehicle has also never overheated before. I turned the key on and turned the heater on, but it didn't get warm. I turned the blower on full blast and the temparature all the way to hot. But the air coming out didn't get any warmer than what it would on cold vent on a warm day. Also I noticed that as I moved the temp from cold to hot and back to cold the cold side blew harder than the hot on the same fan speed setting. I drove the vehicle a couple more miles since it was only about 4 home. But the motor starting clattering so again I immediatly pulled over and shut the vehicle down. Same issues as before. Even while driving the hot air I had coming out the vents didn't get any warmer than vent would. And I had the temp set all the way to hot. This time when I popped the hood I could smell something slightly burnt, but it didn't smell like coolant. Also the air coming out of the vents had a slightly burnt smell to it. It was at this point that my temp gauge dropped back to below normal operating temp. When I turned the key on without starting the vehicle, the temp gauge would spike over to the warmer side than drop down to below normal (also note that my gauges do not do a "spikeing" self test as some new vehicles do They just go set themselves to where they need to... the fuel gauge to it's proper lever, battery, oil pressure and of course the temp.) This is odd because if the vehicle were actually over-heated I would think that the gauge would stay over on the above normal side until it had cooled off sufficiently on it's own. At 100 degrees outside and the motor running, driving down the road to me that is doubtful the gauge would drop so quickly from being pegged to below normal, if indeed it was overheated. So I started the vehicle. It clattered slightly than ran. I shut it down and did the same thing. It clattered again. When I started it a third time a couple minutes later, it didn't clatter, but coughed and then blew a slight amount of BLACK, not white, smoke that smelled of unburnt fuel. I shut it down and din't start it again after that. By that time my tow vehicle had shown up and we towed it home. On the way home - with the key on, the temp gauge again pegged all the way over 260 and stayed there for the rest of way home. It is now sitting in the driveway till it cools down... Any thoughts on what could have happened ?
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Replying to: the_big_al (Jul 22, 2006 6:00 pm) kcram - Pickups Host
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Replying to: kcram (Jul 22, 2006 6:38 pm) |
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Replying to: kcram (Jul 22, 2006 6:38 pm)
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Replying to: the_big_al (Jul 22, 2006 9:26 pm) If you weren't smelling coolant from the vents, next check points are water pump, thermostat, upper and lower hose connects.
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Replying to: the_big_al (Jul 22, 2006 9:26 pm) |
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Replying to: canufixit (Jul 19, 2006 11:53 am) |
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Replying to: race10 (Jun 02, 2006 11:58 am) |
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