Fuel pump problems?
Thread Starter
Drifting
Joined: Jan 2002
Posts: 1,606
Likes: 1
From: Las Cruces NM
Fuel pump problems?
My car's been running progressively slower since the drag season started this year. I started off the season a few months ago 6 tenths slower and it's gotten worse now to the point where I was a full second off today. Weather doesn't seem to matter much and todays conditions were nearly the same as my last runs last season.
I know my motor's probably wanting a rebuild, or a new motor all together, but I'd like to put that off for a couple more years till I'm a civilian and have some more disposable income.
My fuel filter and injectors are nearly new. I'm wondering if the pump could be an issue. It's never been replaced. The car seems to have more power issues up top than down low and I can hear a little cutting out at the top of second gear before it shifts.
What's a good way to test if the pumps dying? I haven't hooked up a pressure meter while it's under load yet.
Thanks
Chris
I know my motor's probably wanting a rebuild, or a new motor all together, but I'd like to put that off for a couple more years till I'm a civilian and have some more disposable income.
My fuel filter and injectors are nearly new. I'm wondering if the pump could be an issue. It's never been replaced. The car seems to have more power issues up top than down low and I can hear a little cutting out at the top of second gear before it shifts.
What's a good way to test if the pumps dying? I haven't hooked up a pressure meter while it's under load yet.
Thanks
Chris
Le Mans Master
Joined: Feb 2000
Posts: 9,715
Likes: 27
From: Kempner Texas
Re: Fuel pump problems? (okinawa86vette)
The best way is to install a fuel pressure gauge and tape it to the windhshield.
The accelerate the car to the rpm/load range where the problem occurs and watch the pressure reading.
There is a "no-load" test involving pumping 1/2 pint of gas in 15 seconds or less, but the gauge procedure is much better.
Jake
The accelerate the car to the rpm/load range where the problem occurs and watch the pressure reading.
There is a "no-load" test involving pumping 1/2 pint of gas in 15 seconds or less, but the gauge procedure is much better.
Jake
