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What makes engine not start after running for fifteen minutes?
Wiki User
∙ 15y ago
I had this problem with two cars, Grand Prix 2001 w/3.8L and my 1985. With the Grand Prix, it was a little difficult to start after the engine was hot and I turned it off. The fuel rail was bad, low suction and wasn't pulling in the gas in. It was rebuilt for about $100 yet I had a feeling all they did was replace a rubber hose they had left hanging off from my last visit. With the Audi 5000S Turbo, after the engine was hot, if I turned it off to run into the store, house, etc. and came back a few minutes later it would not start easily. Eventually it would but not easily. The issue here, carbon build up on the back side of the inlet values. When they got hot the carbon expands like a sponge, right where the gas sprays before getting sucked into the chamber but instead soaked into the carbon. Using Chevron's Techtron every other month seemed to help a little but not like I wished. However, I now use this about twice a year in my Pontiac to keep the spray jets and values clean, seems to work the best out of anything on the market.
Wiki User
∙ 15y ago
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