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#1
07-27-2004, 12:16 PM
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Was getting off of work on saturday, crusing down the highway going about 70 when my car dies. I coast it off the highway to the side of the rode and as I came to a complete noticed my car was dieseling. I turned the car over and she started right up with no problems. I continued down the highway until it happened again about a mile or 2 down the road. I then turned around to take the car to a relatives house that was nearby and just before I got to the exit it did it a third time, each time dieseling when I stopped. This time she would not start. I then grabbed some carb cleaner from my trunk and sprayed out my carb as best as I could and then fired her up again with no problems. When I got it to my grandmothers house I cleaned the carb again and let it idle. She idles just fine with no problems even when I rev her up a few times its only when I start to drive it will kill itself. after I let it idle again I drove it down the street and sure enough it died. I am pretty much at a loss on what it could be. My theory is that the ignition switch is faulty causing the power to the coil to kill the car or some guys here at work think that maybe the fuel filter or system is bad. If anyone has any ideas please let me know. thanks
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#2
07-27-2004, 12:16 PM
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Was getting off of work on saturday, crusing down the highway going about 70 when my car dies. I coast it off the highway to the side of the rode and as I came to a complete noticed my car was dieseling. I turned the car over and she started right up with no problems. I continued down the highway until it happened again about a mile or 2 down the road. I then turned around to take the car to a relatives house that was nearby and just before I got to the exit it did it a third time, each time dieseling when I stopped. This time she would not start. I then grabbed some carb cleaner from my trunk and sprayed out my carb as best as I could and then fired her up again with no problems. When I got it to my grandmothers house I cleaned the carb again and let it idle. She idles just fine with no problems even when I rev her up a few times its only when I start to drive it will kill itself. after I let it idle again I drove it down the street and sure enough it died. I am pretty much at a loss on what it could be. My theory is that the ignition switch is faulty causing the power to the coil to kill the car or some guys here at work think that maybe the fuel filter or system is bad. If anyone has any ideas please let me know. thanks
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#3
07-27-2004, 05:09 PM
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Just a shot in the dark, plugged fuel filter maybe???
__________________
Keith Collier 61-63 Pontiac Tempest Tech advisor POCI.org |
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#4
07-27-2004, 05:29 PM
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Well first find out if it,s Gas or Spark.First make sure the coil is not getting grounded that will kill it quick then
Run a jumper wire to the coil for a quick test and take it down the road. If it,s still there check fuel pressure next Lines, Pump, Filter then on to the carb.
__________________
--------------------------------------------------------- "And he Asked, Who Owns This Car? With The Peace Sign, Mag Wheels, and the Four on the Floor?? --------------------------------------------------------- |
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#5
07-27-2004, 05:41 PM
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Could be the fuel pump going bad. I had that happen once, where the car would start and idle, but when I tried to drive at any speed it would cough and die. The diaphragm in the pump had torn, it would pump enough gas to get started but not enough to run at any load.
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#6
07-28-2004, 05:16 PM
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had a similar situation with my lemans. drove me nuts until i discovered a small crack in the rubber line coming out of the gas tank. apparently it would only suck air at higher rpm's.
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#7
07-29-2004, 04:38 AM
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Had the same problem once and it turned out to be a stuck float in the carb. It might also be a good time to check or change the fuel filter.
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#8
07-29-2004, 07:02 AM
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Had a 64 lemans act similar,was the vent for
the fuel tank clogged and was drawing a vacuum in the tank. After it sit a few minutes,start right up.
__________________
Greg 1969 Firebird/400/th400/3.42:1 rear 1/4=? MPH=? (WIP) 1983 1/2 ton Silverado/lwb/305 (89 FB)/ MSD ign/Mallery coil/83 intake/ 700-r4(rebuilt w/shift kit and corvette servo)/ 3.73 gears/31x10x15 all terrains. 10.9 1/8 mile. 17.xx 1/4 mile 1996 C2500/6.5L TD/4L80e(shift improved),4" exhaust cold air intake, mechanical WG controller 3.73 gears/265-75-16 w/Eagle allows. 2002 1500 Suburban/stock 1986 Fiero GT,needs engine. |
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#9
07-29-2004, 02:04 PM
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A-76,
If the above suggestions don't solve the problem, here is another possbility: If your gas tank has not been cleaned, there is a possibility that debris in the tank is collecting on the pickup "sock" and blocking gas flow. Normal driving agitates the dirt/rust/debris in the tank and it collects on the surface of the filter "sock" around the pickup tube. This restricts fuel flow to the engine and the engine begins to run lean, gets hot, stumbles, and dies but tries to run on due to heat. After the car is stopped, the debris falls away from the sock. The fuel pump can move fuel and the engine starts back up and runs normally. Pull the tank and clean thoroughly. As the "sock" becomes restrictive over the years, most of us remove it by cutting it off. Jim Hand |
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