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2001 VW tdi 1.9 ALH engine fuel line taking in air Hard start

Lots of air in fuel line causing hard start, when she starts very little bubbles flow through and she runs great, once i stop the car will start right up if i let it sit for a while bubbes will accumulate, more bubbles with time causing hard start again. Since the problem i have changed the fuel filter and the 2 o rings on the t fitting first day got better and next day back to air in line this is a 2001 1.9 tdi ALH engine there is also no sign of leak oil/dirty spots on line
Anythought will help Thanks Nick

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5 Suggested Answers

emissionwiz
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SOURCE: VW Jetta 2005 engine indentification needed

The dealer gets there build info via computer link to the manufacturer data base for paticular car, you can be 99.99% it is correct.

Posted on Oct 17, 2008

  • 2 Answers

SOURCE: 1995 GMC Pickup Won't Start After Sitting Over Night

93 GMC PICKUP WONT START REPLACE RELAY SWITCH'FUEL PUMP' MODULE CONTROL BOX' POUR GAS IN TROTTLE BODY TRY TO RUN

Posted on Jan 17, 2009

  • 2039 Answers

SOURCE: hard starting after sitting awhile

if before you start if you hold the gas pedal just a bit does it start faster if it does its our idle air control valve that defective (iac) let me now pierre

Posted on Jan 25, 2009

  • 36 Answers

SOURCE: 2000 GMC Jimmy will not start

Need to check for fuel pressure and volume. If you turn the key on and you have pressure, then you should be able to start and run. If your fuel pressure gauge has a releif hose on it, then while running, dump fuel into a jug and the engine should stay running. If the vehicle will not start but cranks over, then turn the key off and on a few times. the fuel pump will only stay on for a few seconds and cycle off. Sounds like you are losing your fuel prime from the pump to the engine. Only fix is to replace the fuel pump if you are losing your prime.

Posted on Mar 11, 2009

  • 57 Answers

SOURCE: hard starts in the morning even though replaced most parts

Check the power to the cold start injector. (it's only going to have fire for a few sec. after the key is turned on). If the fire is good, replace the cold start injector. This injector is activated for a few seconds when the engen temp is low to add a little fuel lower down in the intake and closer to the pistons.

Posted on May 20, 2009

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Epc light on no gas flow


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1 Answer

VW Jetta 2005 engine indentification needed


The dealer gets there build info via computer link to the manufacturer data base for paticular car, you can be 99.99% it is correct.

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2 Answers

Car start but does not take


Hi,

Two possibilities:
1. air bubbles along the fuel line or in the injector/pump;
2. clogged fuel filter/line.

Possibility #1 would require removal of air by bleeding or priming while #2 would require filter replacement or cleaning the line.

In some instances, it could be the fuel pump has some debris/dirt in the intake, impeller or discharge.

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards.

Thank you for using FixYa.

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