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Engine runs for a total of 5 minutes then shuts as though to run out of fuel. Whats happening?

My 1993 Pontiac Trans Am LT1 5.7 cu in. will only run for about 5 minutes, then shuts down as if to run out of fuel.

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  • Cars & Trucks Master
  • 21,873 Answers

You'll have to do some investigating to find out.
First, is it a lack of spark to the plugs, or fuel to the injectors ?
Then, is it something getting hot like a relay or the coil, or something like a build up of pressure in the gas tank.

Posted on Jan 21, 2013

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Posted on Jan 02, 2017

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stormbrewin
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SOURCE: car wont start after driving

Ignition module is the likeliest place to look.

Posted on Oct 17, 2008

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SOURCE: 1997 gmc sierra shuts off while driving

is the fuel pump the lift pump?

Posted on Mar 01, 2009

polarcycle
  • 1392 Answers

SOURCE: starts and runs 3-5 seconds and shuts down

Sounds like your security system is shutting the car down. You should be able to leave the key on for 15 minutes and it will reset itself. Make sure you are using factory keys, and they are in good condition.

Posted on May 28, 2009

  • 1 Answer

SOURCE: Runs for 20 minutes, gets hot and shuts down. Still has spark

I had the same problem, took to a benz dealer, it was the fuel pump relay, cost for repair $200.

Posted on Aug 20, 2009

  • 138 Answers

SOURCE: 2000 vw cabrio runs normal and shuts down, takes 5

On some models, the Engine Control unit has a power supply relay. These relays some times get internal dry solder points. After driving for some time the the solder will get hot and separate. When it cools down it makes contact again. You will have to replace this relay or open it up and re- solder the solder joints. The relay is usually located on the main relay station in position 3. the relay station is located behind the right dash panel.[right hand drive vehicles]. You may need to refer to a manual for your specific model to find the exact location of the relay.

Posted on Jun 04, 2010

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