Fuel flow problem?
Fuel flow problem?
Hello,
Here is another problem that just came up. When driving in higher RPMs the engine occasionally throttles back, as if on a governor, or starving. If I just kept the gas pedal pressed, it would consistently reduce RPM and with that, speed as well. Once I am standing at idle, which runs just fine, I can drive for a while before the problem occurs again. It has gotten progressively worse during the last two days. Iginition system is OK, new fuel filter inside glass dome, valves/compression just checked. Looking at the glass dome of my fuel strainer/regulator, it appears that the bottom half inch is always filed with fuel, yet I am not sure if that's enough. The engine ran good before and there was never a fuel regulator adjustment necessary. Maybe its the pump, but I would think that the pump would just give in and wouldn't be intermittent.
Any ideas?
Thanks.
Marcus
Here is another problem that just came up. When driving in higher RPMs the engine occasionally throttles back, as if on a governor, or starving. If I just kept the gas pedal pressed, it would consistently reduce RPM and with that, speed as well. Once I am standing at idle, which runs just fine, I can drive for a while before the problem occurs again. It has gotten progressively worse during the last two days. Iginition system is OK, new fuel filter inside glass dome, valves/compression just checked. Looking at the glass dome of my fuel strainer/regulator, it appears that the bottom half inch is always filed with fuel, yet I am not sure if that's enough. The engine ran good before and there was never a fuel regulator adjustment necessary. Maybe its the pump, but I would think that the pump would just give in and wouldn't be intermittent.
Any ideas?
Thanks.
Marcus
Re: Fuel flow problem?
Just a shot in the dark, what comes to mind is a clogged fuel cap vent.
Cum catapultae proscriptae erunt tum soli proscript catapultas habebunt.
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Re: Fuel flow problem?
Or blocked fuel filter?
Re: Fuel flow problem?
...have you already changed the Filter near the Tank ?
And there is a strainer in the fuelpump.
And there is a strainer in the fuelpump.
Re: Fuel flow problem?
I didn't know that there is a filter near the tank. The strainer is clean and new. Where is the other filter?
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Re: Fuel flow problem?
Has you tank been re-lined? My liner started peeling off and it plugged my pickup tube with a piece the size of a leaf.
-1972 710M
Re: Fuel flow problem?
I will check it out. Don't think it was relined.
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Re: Fuel flow problem?
That is a problem with Pinzgauers never heard of it with a volvo.
1974 712M AKA the Banana
1974 710M AKA the project truck
1987 718M Now Sold
1975 Volvo TGB1111 Now Sold
1973 Pinzgauer 712M x2 Now Sold
1963 404S Now Sold
Re: Fuel flow problem?
I checked the filter and there are no particles caught. I also blew out the fuel filler neck vent tube, there was dirt in it, and increased the fuel pressure on the Filterking pressure regulator. He's running great so far, but if the problem comes up again, I will check the tank, fuel lines, and maybe even the fuel pump. Just don't think it's anything mechanical, as the truck has only 23000 original miles on it, and everything else works like a charm.
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- Posts: 244
- Joined: Wed Aug 28, 2013 12:47 pm
- Location: Houston, Texas
Re: Fuel flow problem?
Oh snap, I'm so sorry! I wasn't paying attention to the sub forum from my mobile. Disregard
-1972 710M