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Anonymous Posted on Jun 28, 2017

Porsche 1987 930 turbo

For almost a year now my car loses power and backfired loudly. Sometimes it needs a tow as it will not restart but today it ran until I got it home about 5 miles. I had it running today for a good hour on the highway and side roads without incident until I was heading home. I've had two fuel pumps replaced an also the ignition switch, wires cleaned and replaced when necessary but the car is still backfiring and losing power. Please help!

1 Answer

Bill Boyd

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  • Porsche Master 53,816 Answers
  • Posted on Jun 28, 2017
Bill Boyd
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Joined: Jan 04, 2013
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Problem distributor cap or firing order

5 Related Answers

ourhowse

Dar

  • 2007 Answers
  • Posted on May 01, 2009

SOURCE: My 1995 Plymouth Voyager loses power, surges and backfires.

My first instinct tells me timing chain or belt, but it could be a vacuum line loose, cracked or disconnected. Using a stethoscope, or a length of gasline hose held to your ear, and with the engine running, listen for a hissing sound. Be sure and wiggle all the hoses you can. You might make one hiss. If you don't find anything, get a timing light, and check your timing marks. They should stay in basically one spot. If it's jumping around a lot, you need a new timing chain or belt. Good luck.

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Anonymous

  • 4 Answers
  • Posted on May 08, 2009

SOURCE: Car Runs and Loses Power and Quits Running

Try cleaning the fuel pump filter. Under the seat behind the driver lift the carpet and you will find a round cover with six screws remove the cover. The fuel pump is directly below unscrew the retaining round plate and remove the pump. At the base of the pump is a small filter if it is covered in black muck that's your problem. clean and replace. job takes about 10 mins good luck. please let me know how you got on!

[email protected]

Anonymous

  • 1 Answer
  • Posted on Mar 02, 2010

SOURCE: 92 continental problem; car hesitates on

check and clean the idle control unit. It is located on top on the engine and it as a black knob. It is well known that it gets stuck all the time. It needs replacement or cleaning

Anonymous

  • 306 Answers
  • Posted on Mar 10, 2010

SOURCE: 1995 nissan pickup truck fuel problem

Fuel injected or carb? Make sure fuel line itself is clear. Some pumps are designed to self regulate (carb systems) some continually pump and a psi regulator sends back the excess fuel back to the tank (fuel inj systems) If the line is obstructed then pump can't deliver fuel fulltime.

If you think pump is not on consistent, try running a dedicated wire through a switch directly to the pump. If it works then you are looking for an electrical fault going to pump. Good luck.

Anonymous

  • 236 Answers
  • Posted on Jan 16, 2011

SOURCE: My jeep dies while driving. It decelerates and

i think the catalytic converter is clogged up, meineke , midas or somewhere of that sort will test it for free where i live, call ahead and check where you live , it only takes them a short time to do this test, and it sounds like you've spent plenty, its a free test, and can very well cause the problem you say you have GOOD LUCK!!!!!

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