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Suggestions: Non Start Problem

Circumstances: VERY hot day. Car parked in bright sun, pointing slightly downhill. Parked for maybe an hour and a half, began to rain heavily. I dropped into the seat, cranked and the engine seemed to fire on just a couple of cylinders. It chugged heavily at idle, and if I dropped the pedal, it would stall. Did this a couple of times. Then I let the car roll to a level spot. Cranked again, and it fired right up. The cap, rotor, wires and plugs are almost brand new. What could possibly cause this?

I might have flooded it with the first couple of starts, but that wouldn't explain why it didn't fire the first time. Vapor lock? Leaky injector? Fuel pump? Just a fluke, don't sweat it?

Old 08-01-2011, 04:33 PM
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Year and model would be really helpful.
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Old 08-01-2011, 08:28 PM
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Year would help.

Though...
Check your injector harness. I know it sounds wierd, but heat plays a huge role on a short in the injector connectors!! Could also be a simple vapor lock from a plugged vent line, happens all the time on the race cars!

-Nick
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Old 08-01-2011, 08:39 PM
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Sorry.....1988, NA.
Old 08-02-2011, 04:55 AM
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change out fuel filter. check for junk in the tank.
Old 08-03-2011, 11:20 PM
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I used to have a problem after it rained my 86 944 NA would run and then die, figured out that the ECU down under the passenger side floor board was getting wet, water was getting in from a small hole that had developed in the battery box (I assume from corrosion) I fixed the problem by covering the ECU with a heavy duty plastic bag and of course plugged the hole. I would check that area and make sure it's not getting moisture down there.

Old 08-17-2011, 11:32 AM
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