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Search: Keyword(s): ; Posts Made By: johnstern
Forum: E39 (1997 - 2003) 08-26-2016, 12:43 PM
Replies: 2
Views: 191
Posted By johnstern
The reason that your SAP pump is in the process...

The reason that your SAP pump is in the process of failing is that the SAS valve is full of carbon and is stuck open letting corrosive, dirty exhaust gasses to enter the pump causing the bearing to...
Forum: E39 (1997 - 2003) 08-22-2016, 10:13 AM
Replies: 17
Views: 559
Posted By johnstern
+1. Your superglue fix will last about 5 minutes....

+1. Your superglue fix will last about 5 minutes. I bought one from AutoandArt on eBay, SKU # 8449-0005, BMW 511681596698 for $26.68. Looked and operated perfect.
Forum: E39 (1997 - 2003) 07-28-2016, 05:06 PM
Replies: 24
Views: 1,299
Posted By johnstern
Just a note to say that I agree with others that...

Just a note to say that I agree with others that the DME is not your problem.
Forum: E39 (1997 - 2003) 07-28-2016, 09:43 AM
Replies: 6
Views: 317
Posted By johnstern
There is a large fuse box located under the...

There is a large fuse box located under the passenger front seat/front floor. It contains large fuses that power virtually every system in the car.

When and if it gets wet, it will corrode and...
Forum: E39 (1997 - 2003) 07-28-2016, 08:29 AM
Replies: 6
Views: 340
Posted By johnstern
See my reply to your other thread.

See my reply to your other thread.
Forum: E39 (1997 - 2003) 07-28-2016, 08:18 AM
Replies: 10
Views: 337
Posted By johnstern
If your car has the ability to monitor coolant...

If your car has the ability to monitor coolant temp with the onboard computer, you need to establish what your coolant temp is when the car is fully warmed.
...
Forum: E39 (1997 - 2003) 07-28-2016, 08:04 AM
Replies: 24
Views: 1,299
Posted By johnstern
Firstly the engine coolant temp has to be below...

Firstly the engine coolant temp has to be below 85C for the SAS system to activate. With the testing you've done the relay seems to be failing to get 12 volts to the pump so it needs to be replaced....
Forum: E39 (1997 - 2003) 07-23-2016, 11:29 AM
Replies: 13
Views: 534
Posted By johnstern
Start at the battery and make sure connections...

Start at the battery and make sure connections are clean and tight. Then go to the alternator, etc.
Forum: E39 (1997 - 2003) 07-15-2016, 08:22 AM
Replies: 7
Views: 401
Posted By johnstern
The 3 wire connector definitely plugs into the...

The 3 wire connector definitely plugs into the back of the gong which is installled in the right front of the left side kick panel above the gas pedal.

You don't mention where the other connector...
Forum: E39 (1997 - 2003) 06-30-2016, 10:34 AM
Replies: 41
Views: 1,318
Posted By johnstern
It sound to me like your battery is dead. If you...

It sound to me like your battery is dead. If you have a multimeter, you should measure the voltage across the terminals on your battery. If no multimeter, you can use test #9 on the on board...
Forum: E39 (1997 - 2003) 06-30-2016, 10:05 AM
Replies: 5
Views: 242
Posted By johnstern
Sometimes the pulse wheel (part of the wheel...

Sometimes the pulse wheel (part of the wheel bearing) gets dirty causing the wheel speed sensor to generate an erroneous signal. This makes the ABS computer think the car is sliding and hence the...
Forum: E39 (1997 - 2003) 06-30-2016, 09:42 AM
Replies: 5
Views: 256
Posted By johnstern
The right rear wheel speed sensor provides the...

The right rear wheel speed sensor provides the info to make the cruise control work. If it fails, the cruise will not work and you will get an ABS fault light. If your ABS light is off, there is...
Forum: E39 (1997 - 2003) 06-30-2016, 09:18 AM
Replies: 6
Views: 252
Posted By johnstern
The efficient and best way to find an oil leak is...

The efficient and best way to find an oil leak is with ultra violet oil dye, a UV light and yellow UV glasses. First clean all the leaked oil really well. Then add the dye in the correct amount...
Forum: E39 (1997 - 2003) 06-27-2016, 05:04 PM
Replies: 5
Views: 402
Posted By johnstern
I think you have to revisit your hose connections...

I think you have to revisit your hose connections to the electric vacuum supply valve.

There is a hose that connects to a vacuum supply nipple on the back of the intake manifold. There is a check...
Forum: E39 (1997 - 2003) 06-25-2016, 12:44 PM
Replies: 5
Views: 320
Posted By johnstern
I Googled "bmw e39 touring tail gate soft close...

I Googled "bmw e39 touring tail gate soft close problem" and got endless threads & help.
Forum: E39 (1997 - 2003) 06-25-2016, 10:12 AM
Replies: 3
Views: 205
Posted By johnstern
It is always a good idea to put a bit of grease...

It is always a good idea to put a bit of grease on the o-ring before snapping the connector into place. Silicone grease wound be best but I have used regular mineral grease many times.
Forum: E39 (1997 - 2003) 06-17-2016, 08:06 AM
Replies: 11
Views: 375
Posted By johnstern
I would think that would be unlikely. As the...

I would think that would be unlikely. As the refrigerant removes heat from the cabin and is then compressed and picks up more heat it expands and the pressure increases. If the car is moving at...
Forum: E39 (1997 - 2003) 06-17-2016, 07:43 AM
Replies: 24
Views: 751
Posted By johnstern
The dual temp coolant sensor is very rugged and...

The dual temp coolant sensor is very rugged and rarely fails. Dirt in the radiator will possibly clog small passages that will make the radiator not cool properly.

The ECU control of the...
Forum: E39 (1997 - 2003) 06-17-2016, 07:31 AM
Replies: 11
Views: 375
Posted By johnstern
So if you have the AC on in the driveway, does...

So if you have the AC on in the driveway, does the aux fan ever come on or does it just do it's test and never run. That would seem to be the case if the AC doesn't cool while the X5 is stopped.
...
Forum: E39 (1997 - 2003) 06-17-2016, 06:57 AM
Replies: 11
Views: 375
Posted By johnstern
The single revolution of the PWM aux fan is the...

The single revolution of the PWM aux fan is the ECU testing the fan's operation-the aux fan motor acts as a generator while spinning down and this current tells the ECU that the fan is working.

I...
Forum: E39 (1997 - 2003) 06-17-2016, 06:42 AM
Replies: 24
Views: 751
Posted By johnstern
Dirt in the cooling system will ruin proper...

Dirt in the cooling system will ruin proper system function-clogged radiator, malfunctioning thermostat, inaccurate sensor read outs, etc., etc. You need to have the whole system power flushed and...
Forum: E39 (1997 - 2003) 06-16-2016, 02:24 PM
Replies: 31
Views: 1,392
Posted By johnstern
VaTechM3 you mention the passenger rear footwell...

VaTechM3 you mention the passenger rear footwell as a problem and it certainly is. Do you know about the fuse box under the front passenger floor. Just about very electrical system in the car goes...
Forum: E39 (1997 - 2003) 06-16-2016, 01:20 PM
Replies: 24
Views: 751
Posted By johnstern
+1. The OP should review Internet and forum info...

+1. The OP should review Internet and forum info on bleeding the cooling system on an E39.

My comment of the fact that the ECU opens the thermostat at high engine demand was merely to point out...
Forum: E39 (1997 - 2003) 06-16-2016, 12:30 PM
Replies: 13
Views: 456
Posted By johnstern
The expansion tank in the pic of a Dinan SC setup...

The expansion tank in the pic of a Dinan SC setup posted by Brandon looks exactly like one from an E30 325i, part No 17111712641. The fill cap and the fitting for the coolant level sensor are in the...
Forum: E39 (1997 - 2003) 06-15-2016, 05:43 PM
Replies: 24
Views: 751
Posted By johnstern
I would like to point out that the coolant temp...

I would like to point out that the coolant temp dropping at high speeds and increased engine loads is normal vehicle operation. That is what our electric thermostats are all about. When the DME...
Showing results 1 to 25 of 999

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