'85 244 GL with fuel problems.

Dec 14, 2006 4 Replies

I recently bought this car with 182,000 miles on it. After a short period of time, it seemed to start losing a little power. Actually it seemed as if it was losing torque. It would wind out more before shifting and would seem to shift more between drive and overdrive.



Then I noticed it idling a little rough.



Next thing that happened was that it starting cutting out the other day when I was driving over a mountain. It was at about a half-tank. I turned around and headed back down the mountain, and it actually completely stalled out once, and I had to crank on it quite a bit to get it started. I topped off the tank, and it then got me where I was going.



The next morning I drove it about 30 miles to a friends house and when I went to crank it, it just wouldn't run. It was running so rough, it was undriveable.



I suspected the filter. I pulled the filter and outer pump assembly, and in trying to pull the filter off I damaged the hose coming out of the filter. I replaced the hose all the way to the regulator.



I don't have any way of knowing what the pressure is coming out fo the pump, but it's really under pressure, because it really lets go when I disconnect the fuel line from the regulator.



I've got nothing coming out of the regulator. I unhooked it from the rail and nothing. I find that a bit strange as everything I've read on this group suggests that when the regulator goes bad it let's too much pressure through, not that it shuts off.



I'm also a bit confused about that whole 1/2 tank thing, as that would suggest a bad low-pressure pump in the tank.



Any thoughts?



Thanks in advance, Taylor



Thanks Gary,

That sounds like a logical explanation. I was wondering what would make the regulator completely shut down like that. I don't know how the junk would get past the filter though.

I'm down in Mexico right now, and I am having both pumps, a filter and a regulator sent down to me since I was unsure of what the problem might be. Crawling around under this thing impressed upon me the importance of having some spare parts while I'm tooling around in Mexico.

I'll have the tank dropped while I'm here, as labor is practically nothing here.

Taylor

Any other thoughts by anyone before I start working on this thing? I was thinking of putting an extra in-line filter before the high pressure pump. It seems to me to be a rather strange design to have the filter after the high pressure pump. Shouldn't be too good for the high pressure pump. Plus, I spend a lot of time in Mexico and the gas is not so great here. They recommend you change the fuel filter every time you change your oil. I'd rather change a cheap one on the upside of the Vovo filter.

Taylor

snipped-for-privacy@hotmail.com wrote:

I wonder if the flow resistance of the filter before the pump will be a problem. The in-tank pump is very low pressure and it could starve the main pump.

Mike

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