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Fuel problem???

rooksy

rooksy

New member
On my way to the petrol station today, started first time as usual (had not used car for 2 weeks) fill up warning light had been on for no more than 2 miles, the engine just died. Car would not start up again, so had to get towed home. If I let it stand for about an hour the engine will fire up and run for around 5 seconds then cuts out. Anybody ever experienced this sort of problem before?

Sean
 
Hi Sean,
I haven't had anything like that happen to me but, a common problem on 3.2's is the DME relay (situated under the passengers seat) which controls the fuel pump are prone to just fail without much notice - your sounds like it could be this failure.

I carry a spare relay in the car, it cost about £25, so might be worth a check
 
Are you saying you have refilled it with petrol and it still cuts out? If so you've possibly run the tank dry and dislodged some goo which is now causing the present symptoms. If the injection needs priming after running with low fuel pressure on a 3.2 like earlier models this may need doing too. Hopefully some more replies will come your way soon.
 
I put about 15 litres of petrol in, How do I go about priming the injection, is it difficult? Is it possible to check the DME relay? or are they one of these electrical parts that are best just replaced?

Thanks for the suggestions
Sean
 
Hi Sean,
A quick way to test the DME is find a fellow 3.2 owner swap them over and see what the results are, other wise it's down to your local Porka specialist (may have the equipment to test the DME) or Auto electrician.

Since it is recommended that one should carry a spare DME anyway for £25 might be worth just replacing it, if it solves the problem cool, worst case is you you have the spare.
good luck
 
As a test you can also hard wire the DME and bypass the relay

Pins 84 and 84b I think, but I'll need to check - get back to you on this

Pete
 
I turned car over before replacing the DME relay and it started first time ran for about 1 min, then stopped. Replaced 'DME' with a new one, and the car just turned over at first. I left it for 1/2 an hour, started first time ran for about 20seconds couple of healthy rev's then justed stopped[:mad:].

Bones mentioned picking 'crap' up from the petrol tank anyone had to deal with this problem. Any help greatly appreciated, especially with the bank holiday weekend looming.

Cheers
Sean
 
Replacing parts without diagnosis is usually the equivalent of throwing money away, if the car starting misbehaving after you ran out of petrol where previously it had been fine then the place to look first is the fuel system. If you don't know the car that well take it to a specialist to have the fuel pressures tested and go from there. It may be that having run the system dry it now has to be primed or it has a blockage somewhere because debris in the tank bypassed the filters and clogged the injectors or some other part of the system. Every three months or so put a bottle of fuel injector cleaner into the tank.
 
Sean

I agree. Fuel starvation sounds like a distinct posibility, as does that of 'dirty' fuel. I would go first for something more obvious. When was the fuel filter last replaced?

R.
 
Not sure when the filter was replaced. I've only done around 3k miles in the last year, and the no mention in the documentation I do have.
 
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