Question about 1985 Volkswagen GTI

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My 1985 golf gti 8v hesitates to accelerate from 1000 rpm to 3000 and when beign stop for 10 minutes or moving really slow in traffic the fuel pump starts making a loud noise and then it goes out and the car turns of. I have replaced the fuel pump twice and they were both brand new Bosch so I don't now was causing them to go out. Then I would have to leave the car off for about 10 min for it could turn on again.

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  • lynwoodcarlo Apr 20, 2009

    I have change the fuel filter also, and it still hesitates. And how do I check the fuel for air?

  • lynwoodcarlo Apr 21, 2009

    how do i check if the fuel has air in it? 1985 golf gti 8v

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Air in a gas line means your PCV valve has failed.
There is an air bleed-off valve in your fuel line that goes through the PCV valve and crankcase.

Another option is your fuel pump relay has failed or is sticking - causing the fuel pump to stay on and be over-burdened.... sending max fuel to cylinders under load (accelleration).

Did you properly bleed the air and prime the pump each time you changed it?

Thanks for using FixYa!!

Posted on Apr 21, 2009

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Sir,
Go these links and read throughly may be solve the problem
Link 1
Link 2
Link 3

Thanks Good Luck
Appreciate to rate as "Fixya"

Posted on Apr 20, 2009

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Hi Lynwoodcarlo,

These 2 problems are interrelated :). But there might be millions of reasons for the same :(.

It's not possible for you to diagnose each and every aspect, However, we can still diagnose the major reasons causing these issues, and particularly in 85 golf gti 8v.

Regarding noise, it refers to unhealthy Pump.

Check and make sure there wouldn't be any air in the fuel. If you have that, you might have noticed as your fuel would remain ( Let's say 1/4 ), the noise would increase.

If we talk about acceleration, there are many factors - The best would be to change the fuel filter. If there would be clogging in fuel filter, it would never allow you to accelerate the car after certain point.

Replace if you find fault.

Any further query, let me know.

Thanks for using Fixya.

Do rate the solution as "Fixya" if 100% satisfied.

Posted on Apr 19, 2009

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Posted on Jan 02, 2017

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