1985 5000s cold start fine, warm start not

[macstoy1]

Hi
I am new to this and would like to thank you in advance for being here.
I have a 1985 that starts fine when cold but if its warm it dosent want to start. Any ideas?

[DoctorD15]

is it like the symptom explained in the post below, how it wont start after drinving and shutting off and turning back on....or does it just keep firing and firing when its warm, until it finally turns over.

[macstoy1]

Originally Posted by DoctorD15

is it like the symptom explained in the post below, how it wont start after drinving and shutting off and turning back on....or does it just keep firing and firing when its warm, until it finally turns over.

It cranks and cranks until it starts then its hard to keep an idle

[DoctorD15]

I actually have a similiar problem....When its really cold out it fires right up...which is due to the cold start injector kicking in and working well.

When its a temperature thats not too cold, the car will crank and crank and crank, until it finally turns over and fires up. If i turn the car off and turn it back on, right after a startup though it will fire up right away.

Your issue to me seems like a fuel issue. I have been told that the culprit to this problem is a leaky check valve (which is located on top of the fuel pump)

I have also been told that leaky injectors can cause this. I have yet to figure out the problem, but try going to SJM Autotechnik, Audi Parts Specialist, 503-244-2834, Audi Quattro Parts, VW Parts, BMW Parts

Its a great site with a ton of info...search around and see what u can find.

Also check your private messages for another message i sent you regarding your problem.