Author Topic: Stalling '94 Golf (Read 4952 times)

Mattg · « **on:** September 05, 2007, 01:12:20 pm »

Because there's a few air bubbles in the clear fuel lines, I changed the fuel filter (a bosh), I also replaced an injector because it was leaking.

Ever since I did this the car stalls every time I slow down for a light or a stop sign, pretty much anytime I press in the clutch, the rpm's fall way down and the car stalls. Not to mention there seems to be even more air bubbles in the fuel.

Any ideas?? I'm stumped.

jtanguay · « **Reply #1 on:** September 06, 2007, 11:23:02 am »

Quote from: "Mattg"

Because there's a few air bubbles in the clear fuel lines, I changed the fuel filter (a bosh), I also replaced an injector because it was leaking.

Ever since I did this the car stalls every time I slow down for a light or a stop sign, pretty much anytime I press in the clutch, the rpm's fall way down and the car stalls. Not to mention there seems to be even more air bubbles in the fuel.

Any ideas?? I'm stumped.

faulty fuel filter? if you still have your old one, try it? or get a new fuel filter to rule it out. supposedly the fuel pre-heater can leak.. and you aren't the first to have this problem with a new fuel filter.

Mattg · « **Reply #2 on:** September 17, 2007, 01:44:41 pm »

Ok so I put the old fuel filter in and no change, and it still stalls, just when I push in the clutch to slow down the RPM's drop right off from 2500-0 and the car stalls. I tried keeping it alive by giving it some gas but this doesn't alway work. Any ideas??

burn_your_money · « **Reply #3 on:** September 17, 2007, 02:38:19 pm »

did you use a new heat shield for the injector?

Mattg · « **Reply #4 on:** September 17, 2007, 10:21:10 pm »

Quote from: "burn_your_money"

did you use a new heat shield for the injector?

I didn't but would a bad heat shield cause this stalling issue?

jtanguay · « **Reply #5 on:** September 18, 2007, 07:54:27 pm »

Quote from: "Mattg"

Quote from: "burn_your_money"
did you use a new heat shield for the injector?

I didn't but would a bad heat shield cause this stalling issue?

ALWAYS use new heatshields !!! the new heatshield will actually deform when installing the injectors to provide a good seal for the injector. i'd say pull the injector and try to get the heatshield out asap. a magnet should suffice, but it may be stuck in there. as for it being the culprit, who knows. did you crack the injector lines (while starting or while running) to bleed off any air? the system have bled itself off after a few minutes of running, but you never know.

Mattg · « **Reply #6 on:** September 19, 2007, 08:25:25 pm »

I think I found one of the problems. I bought a new fuel valve when replacing the old one I noticed the arrow on the old valve was pointing in the wrong direction. :oops: When I replaced the fuel filter it must have gotten flipped around. Talk about a newbie mistake.

Mattg · « **Reply #7 on:** October 04, 2007, 03:44:56 pm »

So the car still stalls, so I broke down and took the golf to the local vw speciality shop.

They say the problem is the IP, which is what I was thinking but I was hoping it wasn't. They want $2500 to change the IP, new timing belt, and crank pully (it wobbles). The rebuilt IP the want to use is $1500.

I'm thinking I've already replaced the head, welded patches into the floor etc. how hard could it be to replace the IP?

So I've found a used IP for between 200-350 with 60day warrantee (not rebuildt)
A rebuilt one from the dearler for 900-1000 ( after the 400 core).

So the question is the IP the problem?? And how hard is it to replace the IP?

jtanguay · « **Reply #8 on:** October 04, 2007, 03:51:53 pm »

i'm thinking that the problem is the leaking injector. you've already put back the old fuel filter which rules out that, so the only thing changed since that is the injector.

so $3500 for all that new crap? damn... the crank wobble is pretty serious. if you aren't really mechanically inclined, i would recommend at LEAST changing the alternator pulley to the clutched style. it will reduce the shock to the crank pulley when you go from 4000 rpm to 1000 rpm (the alternator is a big rotating mass that puts stress on the crank pulley/bolt... or you could baby it by trying to keep it in gear, and no hard launches)

Mattg · « **Reply #9 on:** October 04, 2007, 05:14:20 pm »

Quote from: "jtanguay"

i'm thinking that the problem is the leaking injector. you've already put back the old fuel filter which rules out that, so the only thing changed since that is the injector.

Nope I changed that injector out, bled the system, the car still stalls.

jtanguay · « **Reply #10 on:** October 04, 2007, 10:16:03 pm »

so you went from a car with a leaking injector that ran ok, to a car that is stalling by changing the fuel filter and an injector.

changing back to old fuel filter & injector does not solve problem... hmmm. i wouldn't imagine the injection pump coincidentally failing at the same time as the change, but it is possible...

is the pump leaking at all? any bubbles in the clear line? maybe it's sucking air...

maybe another injector isn't firing properly too. crack each injector line one at a time and you can tell when you find the one that is at fault... because the engine won't change its tune. if you need to, increase the service idle screw so that the engine stays running on whatever cyls.

Mattg · « **Reply #11 on:** October 05, 2007, 08:18:56 am »

There has always been a lot of bubbles in the fuel, ever since I bought the car.

I've always kind of suspected that was part of the problem, wheather the pump or the lines themselves are the cause the bubbles I'm not sure. I'm going to have to check that out before I change the pump out that's for sure.

I've checked the other injectors and they seemed to be ok.

fatmobile · « **Reply #12 on:** October 12, 2007, 02:12:07 am »

Get that woobly pully fixed before you drive it again.
The crank could be coming loose from the timing gear, next step pistons hit the valves.
Air in the fuel is usually caused by a restriction in the fuel line.
I've heard the MK3 diesels didn't have a water seperator so I'd check the intank screen for stuff clogging it up.