Any idea's? I don't even know how to test it since I can't force it to happen.
Every once in awhile my fuel pump fuse (20amp) will blow and cause my car (vr6) to stall out. Has happened a total of four times so far. Three after I put my car in reverse and started to move and once when I just pulled in my driveway. When I replace the fuse the car starts up no problem. I wasn't doing anything out of the ordinary and it doesn't ALWAYS happen when I go in reverse, only sometimes.
Not sure where to go from here because I don't want it to happen on the road.
Well so much for that. Got to work again today, went to back in the parking spot...aaand it died. I tried over and over to repeat exactly what I did and I can't.
Sometimes I feel like it's about to stall and the dash starts to dim/flicker, but it never stalls.
Seems like I'm talking to myself here but I'm not sure where to go from here.
I've had something similiar happen to me in my mk2 and it ended up being the entire fusebox being corroded. Replaced the entire unit and it worked just fine
Air&Water Specialists @ Bug Haus VW - 804.232.8989 || VRSociety #296 || GO LAKERS
As crazy as it sounds, this exact thing was happening to me in my last car. (98 gti vr6)
Somewhere I remember reading in a bently manual or in the vr6 section
the O2 sensor is on the same circuit as the fuel pump,
and it was causing it to blow constantly. I'm pretty sure it was the upstream O2 (closest to the manifold/headers) and after I replaced it, the problem stopped.
Someone correct me if I'm wrong, but just throwing the idea out there,
and it couldn't hurt to check and see
if your O2's are working properly?
I replaced both 02 sensors back in October, and if they weren't working properly then wouldn't I have a CEL?
So I guess I have to pull the fuse box and trace the wires from the fuel pump relay all the way back to the fuel pump? Wow this sounds fun. Could it be possible that the relay is bad?
Thanks for the help guys.
Well I discovered something else today. It does not matter what gear I'm in. It only happens when I turn the wheel all the way in one direction and start moving. I thought it was my reverse gear but I realized that I always turn the wheel almost all the way when I move in reverse (to back in to a parking spot or something).
So why the F would me turning the steering wheel cause my fuel pump fuse to blow?
This car makes me
It sounds like the pump is either getting gummed up (internal vanes) or bearing/bushing failure and causing an extra current draw because of the extra load on the motor. This over current will cause a fuse to blow. A short is instant.
Or some of the windings in the motor can be burned out, and this will also cause the motor to draw more current than normal. Thereby causing an over current and blowing a fuse.
Making power, 4 valves at a time.
MkIII 16v Club.
I could be talking out of my a$$ I appreciate the help.
Sounds to me like an intermittent short. You say it only happens when you turn the wheels all the way one way? Then start checking the wiring. Obviously when you turn the steering wheel, something is making contact that shouldn't. Somewhere on the car, the insulation on the wires that feed the fuel pump (or something else on the same circuit) has worn through from rubbing, and makes contact with the chassis or a ground wire in the wiring harness, WHEN THE WHEELS ARE TURNED ALL THE WAY ONE WAY.
My guess is that the problem is under the hood somewhere. Is your car dumped? Dropping a car causing more problems for the owners than anything else I can think of.
I was curious, and I looked in my Bentley Manual wiring diagrams. The O2 sensor heaters get power from the same circuit and fuse as fuel pump.
You may not get a CEL is the O2 sensor heater circuit is open, if the battery has been disconnected, no CEL unless after the Readiness Tests have been completed, and the Readiness Tests cannot be completed without the O2 Sensor Heater Function test completing (which cannot be completed if the O2 sensor heaters are not both working).
Yeah I know that the 02 sensor is on the same circuit as the fuel pump. I just went outside and had my cousin help me out.
I started the car, left it in neutral, and turned the wheel all the way both ways. When I turn the wheel all the way to the left nothing happens, when I turn it all the way to the right, the fuse blows and the car stalls.
So it's only when I turn it to the right all the way.
Wow, that is strange indeed.
I guess keep the wheel at full lock, and look under the car at both sides of the components (tie rods, steering rack, etc. See if you can see any wires getting pinched. Maybe the O2 heater wire is getting pinched in the steering rack?
Making power, 4 valves at a time.
MkIII 16v Club.
Fingers crossed again
thank you so much folks for that. it kept happening to me. i burnt like at least 20 fuses before finding the problem and that was so not where i was looking .. i even changed the fuel pump, looked the whole fuel pump wiring changed my FPR .. i was seriously cluleless