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99 Audi A8 stalls every hour or two usually when at idle,

Customer Question
99 Audi A8 stalls...

99 Audi A8 stalls every hour or two usually when at idle, occasionally when driving... no error codes

Mechanic's Assistant: Is the check engine light on? Does the car stall at idle or when driving?

No check engine light

Mechanic's Assistant: Are you fixing your A8 yourself? What have you tried so far?

Coils replaced, plugs replaced, cleaned idle control valve, cleaned maf, replaced front engine breather hose, rear breather hose is damaged, cannot get to it, car restarts and runs perfectly until it stalls again, at idle just before stall rpms hunt

Submitted: 7 months ago.Category: Car
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Answered in 1 minute by:
11/28/2017
Auto Mechanic: Wolfgang, Master Auto Tech replied 7 months ago
Wolfgang
Wolfgang, Master Auto Tech
Category: Car
Satisfied Customers: 5,219
Experience: Master, L1, L2, ASE 15yrs and running.
Verified

Thanks for choosing Just Answer . I'm Wolfgang here to help!!

I am confident we can resolve your problem together. Please
understand that I don't know your skill level. In most cases when you have a problem
with the way the vehicle performs, specialized tooling is required to acquire computer
data/information or engine testing results. We didn’t build these complicated vehicles; we
just diagnose and fix them. Also understand that I can't see, smell, hear, or touch the
vehicle either, so it may take a few replies to get to satisfactory results. Note there may be an issue where the complexity of the issue will require a Premium Service. This service will be an addition to the normal question cost. Usually it does not come down to this but keep in mind!! I am also going to direct you with the fastest, easiest and most common things to check first. Please be
patient and permit me to do what I do best.
I also try to give all of the information you may need, expecting a “positive rating” in
return. I will also continue assisting you after you have rated me, if necessary. If there
is any reason I cannot get a positive rating, please let me know why “in advance”, so I
can go another direction for you. I am sorry you’re having this problem; I’ll help you
through it.
Below is my first answer or request for more information. If you do not understand it, or you need more information from me, or need me to go in more detail.

I do need the vin # of the vehicle to get the factory info to assist!!

Thanks

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Customer reply replied 7 months ago
WAUBG34D6XN002333
Auto Mechanic: Wolfgang, Master Auto Tech replied 7 months ago

ok let me do my thing and will bet back asap!!

thanks

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Auto Mechanic: Wolfgang, Master Auto Tech replied 7 months ago

it is a ground issue . near the coolant bottle area by the firewall is a set of grounds . remove the nut clean the eyelets and then retorque the ground and then road test . please let me know if the issue is there. and if there what scan tool are you using make and model are you using!!

thanks

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