cold stalling

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fish
Hard Yaka
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Joined: Wed Aug 16, 2006 12:00 pm
Location: qtown

cold stalling

Post by fish »

My 4m40 if not warmed up well it will stall when diven and is difficult to start again. Seems like its starving for something. If I warm it up for a min its fine. I normaly run it up anyway but I would like to to handle being driven any time if need be. Is it the fuel pump?
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FORGE1
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Re: cold stalling

Post by FORGE1 »

Mine did a similar thing in the wife's challenger was told there was a seal inside the injector pump that was stuffed and allowing the fuel to drain back into the tank. I would start it on cold mornings sweet and it wud run for about 1min Then slowly stop and I'd have to use the pump on the fuel filter to get it going again or sit there for ages cranking it over until it eventually started. It was weird that it only happened on cold mornings but warm mornings it was sweet.

Simple fix for us was a 1 way valve just before the fuel filter to stop the drain back and it sorted it. This was the cheap way haha.
Don't Bend the Rules, Rule the Bends!!!
fish
Hard Yaka
Posts: 487
Joined: Wed Aug 16, 2006 12:00 pm
Location: qtown

Re: cold stalling

Post by fish »

Hmm sounds similar. I usually have to wait a min then. crank it for 15 or so seconds to lite it up again. I might have a look at doing that aswell. I was thinking about changing the fuel filter aswell. Im not sure how often you are supposed to.
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Pajmad
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Re: cold stalling

Post by Pajmad »

The seals in the front of the diesel pump leak and allow air and old engine oil into pump causeing the stall, you can fix it tempory with a electric fuel pump but run the risk of filling engine sump with diesel as the seal gets worse
1992 lwb Pajero 2.3tdi 15psi Keeping It Real
fish
Hard Yaka
Posts: 487
Joined: Wed Aug 16, 2006 12:00 pm
Location: qtown

Re: cold stalling

Post by fish »

is it a major to replace the seal? i never thought it would be that serious
yikes
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