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3100 suddent death (friend's car)


Lumineer

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My friend Ben owns a bright red '97 Monte Carlo LS with a 3100 and was taking my brother and some friends to Worlds of Fun down in Kansas. I was sleeping and got a call all of a sudden. Apparently, the car broke down suddenly and left them stranded on the interstate. They report seeing the SES light come on, then smelling burning oil briefly, but the smell quickly went away. The car then died. He told me they checked all fluids, including oil, and said it was fine.

 

I asked him if he checked the coolant, because I know these engines are known to suffer leaky head gaskets, allowing coolant into the engine, but he said coolant level was okay. The car is completely stock, with only a Flowmaster muffler. It has 115k on the odometer. Last I rode it, I remember learning that the car had some electrical problems (interior lighting never worked or partially-worked half the time). They want me to call back if I can tell them anything whatsoever, other than leaky head gaskets as a possibility.

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Well, I called my friend to get more information and he said that the car would start right up, but then die again. I mentioned the leaky head gasket possibility and he said that it DID in fact have a leaky head gasket. Why he never did anything about it during the time he's had it is baffling (he's had it maybe a month or two at most).

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Throttle position sensor? That wouldn't explain the burning oil smell though. Perhaps he caught the burning oil smell from some POS in front of him. That's happened to me on occasion. I smell it and think "Oh shit, what happened" then I see the 92 Saturn puttering along ahead of me.

 

I know when the TPS died in my '91 CS, it would start, and then die.

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Well, my friend got towed to some shop out in the middle of a cornfield, according to him :lol: He described the mechanics as hillbillies. I don't remember the details, but I guess he got the A/C fixed the other day before the trip and I can't remember if it was directly related or perhaps the previous mechanic(s) forgot something, but he told me something to the effect that his air intake or something was screwed up somehow, and that the MAF sensor also ignited somehow. I can't remember the details, but they fixed it nonetheless. Although, he says he feels like he's lost some low-end power, but that his top-end speed is higher. He also noted that it idles higher than before, around 1000-1500ish.

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If the car starts and immediately dies I think of a few things:

 

1. VATS (try another key if he has one). You can also search for one of the many threads about bypassing VATS.

2. Check for loose or disconnected vacuum hoses

3. Spark

4. Fuel

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