1990 Volkswagen Cabriolet Logo
luis rodriguez Posted on Mar 04, 2015
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1990 vw cabriolet. Thanks guys for the suggestions to my problem but tried it all but still wont start. Both pumps are working, new pressure regulator. It started yesterday but I cranked the engine for a long time before I could get it to start. It idled fine but it wouldn't accelerate it would just bogged, tried it with a different airflow meter but same and today it just wouldnt start. The car was fine when i bought it but the very next day timing belt snapped off, put a new belt then this problem started. Timing?

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Terry Larkin

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  • Posted on Mar 04, 2015
Terry Larkin
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You need to rsplace idle control motor. It work the idle and driving speeds

Dennis Prather

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  • Posted on Mar 04, 2015
Dennis Prather
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Sounds like you have one or both of the belts off by a tooth. Did u use cam locks to hold the camshafts in place. If it is a zero tolerance engine you may have messed a few things up.

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5 Related Answers

Anonymous

  • 114 Answers
  • Posted on Mar 23, 2009

SOURCE: 96 Escort Timing Belt Issues

Take the plug out of #1 and bring the piston to top dead center,then you can look at the cam to see if it on the power storoke all valves should be closed and the cam lobes off of the lifters,once you get it to this point you should be able to see the timing marks to do the fine tuning. Make sure when you put the belt back on you do not over tension it, as well install the belt on the cam first and work your way clockwise so that ALL of the slack is at your tensioner, this will prevent the timing marks from being a half tooth off.With a socket on the crank pulley bolt roll the crank two full revolutions and check your timing marks and belt tension again.

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gordanddar

gord storey

  • 477 Answers
  • Posted on May 10, 2009

SOURCE: engine cranks car won't start

Sorry..... 1 notch off is just not good enough. It has to be exact , then if it doesn't run start looking at other posibilities.

Remember that the camshaft turns twice eash time the crank turns once. The distributor rotor works off a gear on the cam.
Your rotor could be off a bit , or it could look exactly perfect the way it was when tou took it out , and still be 180 degrees off.
You have to get your engine to "top dead center" and make sure everything is the way it should be.

A timing chain ( or belt ) can cause permanent and fatal damage to the valve train and pistons in motors that are "interference engines" Find out weather yours is. In a non-interference engine , the clearance between the valves and the pistons is large enough to alow them to move out of time without crashing into each other. An interference engine is not so forgiving.

The fact that your engine cranks makes me hopefull that it is a non interference engine , and that damage has not been done.

Try to find a haynes manual for you vehicle , it will walk you through the steps for most repairs.

Anonymous

  • 318 Answers
  • Posted on Oct 27, 2009

SOURCE: Car won't start after timing belt change

Don't forget the ground wires.

Knight 007

Murtaza Akberali Versi

  • 767 Answers
  • Posted on Oct 30, 2009

SOURCE: I have 1988 vw Cabriolet I just bought. Timing

Check the fuel pump, it may not be functioning.

Ed Paje

  • 632 Answers
  • Posted on May 30, 2010

SOURCE: 1997 Jetta GT 2.0 Stopped running,cranks,will not start

Checking for spark is really simple while fuel delivery is more complicated because of the the way it is metered for delivery. On VW's a fuel pump relay is used and a jumper cable connected to relay box. This controls the fuel pump to deliver fuel manually. With a fuel pressure gauge connected to the line from the pump continued withing the system, you assess whether you have correct fuel pressure, maintain it within a specif duration. Electronic fuel injectors do stick or stay open causing very poor or no start condition. Make sure you have fuel delivery since you are positive that spark is present.

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