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Forum: Audi 5000 / 200 / V8 Discussion
05-15-2023, 12:35 PM
Replies: 14
Views: 3,482
Posted By audi_marv

Fuse box under the hood on the driver's side.

Fuse box under the hood on the driver's side.
Forum: Audi 5000 / 200 / V8 Discussion
05-11-2023, 06:22 AM
Replies: 14
Views: 3,482
Posted By audi_marv

Sounds like your fan relay(s) are out, or the a/c...

Sounds like your fan relay(s) are out, or the a/c controller on the dash console is bad.
Forum: Audi 5000 / 200 / V8 Discussion
05-04-2023, 06:35 AM
Replies: 3
Views: 1,082
Posted By audi_marv

Could be your Cold Start Valve not operating when...

Could be your Cold Start Valve not operating when vehicle temp is cold. The CSV acts as an additional injector to assist cold startups, and then shuts off once the vehicle is warmed up and obtains a...
Forum: Audi 5000 / 200 / V8 Discussion
05-04-2023, 06:28 AM
Replies: 14
Views: 3,482
Posted By audi_marv

Yes, this could be the problem if your fan is not...

Yes, this could be the problem if your fan is not turning on when the AC is turned on. A MM test would confirm this, but I simply swapped out the sensor.
You may also need to check/switch around...
Forum: Audi 5000 / 200 / V8 Discussion
04-14-2023, 10:16 AM
Replies: 14
Views: 3,482
Posted By audi_marv

Did you check the 3 speed sensor attached to the...

Did you check the 3 speed sensor attached to the back of the radiator ?
Forum: Audi 5000 / 200 / V8 Discussion
08-07-2018, 07:31 AM
Replies: 11
Views: 13,407
Posted By audi_marv

Check your Idle Stabilizer for your weak idle...

Check your Idle Stabilizer for your weak idle issues. Clean thoroughly. There also may be an idle control unit in the aux. fusebox below the steering wheel that may be an issue. Also check the...
Forum: Audi 5000 / 200 / V8 Discussion
04-11-2018, 04:46 AM
Replies: 1
Views: 5,863
Posted By audi_marv

Could be several things, so testing first is...

Could be several things, so testing first is always best. If you are in replacement mode, start with the sensor next to the spark plug. There's also the sensor attached to the radiator, and the...
Forum: Audi 5000 / 200 / V8 Discussion
12-19-2017, 10:35 AM
Replies: 2
Views: 760
Posted By audi_marv

Make sure you add a bottle of Bar's Stop Leak to...

Make sure you add a bottle of Bar's Stop Leak to the fluid once complete, since its a rebuilt rack.....so you don't ever have to change it again !
Forum: Audi 5000 / 200 / V8 Discussion
11-30-2017, 05:58 AM
Replies: 6
Views: 1,429
Posted By audi_marv

Also....don't forget to change the fuel filter,...

Also....don't forget to change the fuel filter, if you have not done so already.
Forum: Audi 5000 / 200 / V8 Discussion
09-25-2017, 08:22 AM
Replies: 2
Views: 1,346
Posted By audi_marv

Try changing your fuel filter.

Try changing your fuel filter.
Forum: Audi 5000 / 200 / V8 Discussion
06-06-2016, 05:22 AM
Replies: 1
Views: 893
Posted By audi_marv

I would also think the signal comes from the Head...

I would also think the signal comes from the Head Unit. Probably from compressor, to head unit, to ISV. You may want to check the head unit pin functions just to check.

Another source may be the...
Forum: Audi 5000 / 200 / V8 Discussion
06-06-2016, 05:16 AM
Replies: 3
Views: 2,159
Posted By audi_marv

Check the wiring behind the climate control unit...

Check the wiring behind the climate control unit to make sure they are not broken/melted/or compromised in any way. Probably the wiring went first, and actually shorted out the blower motor. The...
Forum: Audi 5000 / 200 / V8 Discussion
02-29-2016, 06:22 AM
Replies: 1
Views: 1,906
Posted By audi_marv

Fuel pump relay....Fuel pump valve.....Cold start...

Fuel pump relay....Fuel pump valve.....Cold start valve (6th injector), Fuel Regulator/Fuel pressure ... ??

Sounds like after shutting the vehicle off, or sitting a while, you're losing fuel...
Forum: Audi 5000 / 200 / V8 Discussion
11-16-2015, 07:47 AM
Replies: 7
Views: 3,195
Posted By audi_marv

Sounds like a vacuum leak, and/or your idle...

Sounds like a vacuum leak, and/or your idle stabilizer. Pull the stabilizer and clean with throttle body cleaner, as it may just be sticking. When idling, remove the oil cap and see if the engine...
Forum: Audi 5000 / 200 / V8 Discussion
11-13-2015, 03:57 AM
Replies: 7
Views: 3,195
Posted By audi_marv

The idle was probably adjusted to get it to run...

The idle was probably adjusted to get it to run also....and now that you have a whole filter in, its out of whack. The manifold is right there at the airbox, so is any of the heat shield even left ??
Forum: Audi 5000 / 200 / V8 Discussion
09-11-2015, 04:57 AM
Replies: 4
Views: 5,018
Posted By audi_marv

Check RockAuto or Autohausaz for an alternative,...

Check RockAuto or Autohausaz for an alternative, and replace fluid with DOT4 instead of DOT3, to help with the overheating.
Forum: Audi 5000 / 200 / V8 Discussion
08-19-2015, 09:19 AM
Replies: 12
Views: 3,950
Posted By audi_marv

I would say both are bad. Had one around 970 that...

I would say both are bad. Had one around 970 that turned out to be bad. Try swapping the two (and the connections) and see if anything changes. Clean off any metal bits attached to the magnets also....
Forum: Audi 5000 / 200 / V8 Discussion
08-10-2015, 09:26 AM
Replies: 10
Views: 2,398
Posted By audi_marv

Ditto toml99. Had the same type of leak before I...

Ditto toml99. Had the same type of leak before I replaced my rack with a rebuilt one. I used a bottle of Bars Leak prior to the replacement, and it stopped the leak. I believe it swelled the seals...
Forum: Audi 5000 / 200 / V8 Discussion
07-23-2015, 09:45 AM
Replies: 10
Views: 2,398
Posted By audi_marv

Check Car Part Wholesale on thEBAY. And whether...

Check Car Part Wholesale on thEBAY. And whether you get new, used, or rebuilt.....add a bottle of Bar's or Lucas Stop Leak to the fluid. You're also better off flushing the system and using Mobil 1...
Forum: Audi 5000 / 200 / V8 Discussion
05-11-2015, 05:38 AM
Replies: 9
Views: 6,081
Posted By audi_marv

Ditto on the ECU ground at the Intake manifold. ...

Ditto on the ECU ground at the Intake manifold. Mine broke off at the spade, and it shut the whole vehicle down !
Forum: Audi 5000 / 200 / V8 Discussion
05-01-2015, 11:15 AM
Replies: 1
Views: 1,283
Posted By audi_marv

On my 5kT, the 1st speed fan relay is in the fuse...

On my 5kT, the 1st speed fan relay is in the fuse box under the hood....and the after run relay is located in the 2nd aux fuse panel directly below the steering wheel.

Actually...the after-run...
Forum: Audi 5000 / 200 / V8 Discussion
04-17-2015, 04:29 AM
Replies: 3
Views: 850
Posted By audi_marv

You can also look here.....

Did this last year, same side. Remember to fine sand and lube the metal window guide as it will be pitted and rusted.

$45 Audi Left Front Window Lifter Motor 100/0 5000 V8 443837397D...
Forum: Audi 5000 / 200 / V8 Discussion
11-11-2014, 09:26 AM
Replies: 34
Views: 6,423
Posted By audi_marv

I've heard of a button being rigged to the cold...

I've heard of a button being rigged to the cold start valve, but this won't fix what's wrong. If you have the time, and $$$, the mechanic should do a leak down test to see if the injectors are...
Forum: Audi 5000 / 200 / V8 Discussion
11-05-2014, 06:05 AM
Replies: 34
Views: 6,423
Posted By audi_marv

Well from there, he could go to the fuel...

Well from there, he could go to the fuel accumulator, to the fuel pump check valve, and the fuel injectors themselves....to see if they are all holding fuel pressure after shutoff.

And to simply...
Forum: Audi 5000 / 200 / V8 Discussion
11-04-2014, 08:08 AM
Replies: 34
Views: 6,423
Posted By audi_marv

Not sure what manual your mechanic may be...

Not sure what manual your mechanic may be using/looking at....but I think he may be referring to the Warm Up Control Valve.

Best bet is for him, and you, to become very familiar with the...
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