Engine/Transmission (1998.5 - 2002) injection pump came today, got it installed, BUT;

[emarsh]

got one block and the fuel pressure went from 5 psi to zero, truck quit. Wife towed truck back with our ole 77 bronco. The lift pump quit; works fine when hotwired. I will bypass the computer output, however, truck wont start so I have to bleed the lines all over again in the morning; hope that is the only thing wrong at this point. Anyone looking for a 2wd 2002 with only 44k miles?

 

[MFranz]

Marsh,Sounds like a bad lift pump. Could be what caused your problem with the first Injection pump. If you have a stock lift pump see about upgrading to a Airdog or Fass lift pump. These units mount closer to the fuel tank which solves part of the problem. Injection pumps have been known to pump fuel without the lift pump working but not for long. A lot of the fuel that runs through the injection pump is used for cooling and just gets recycled to the fuel tank.

Good Luck

Mike

 

[MFranz]

OOOps. Looked closer at your sig and saw that you had already moved the lift pump. Maybe its time for the upgrade

 

[Ncostello]

2wd 2002 with only 44k miles?

No... but I am looking for a 2002 4x4 with only 44K miles.



Are you saying that key on (no start) produces nothing? How about if you just bump the starter. It should run for 30 seconds after that and a no start condition. If you get nothing... something is wrong with the ECM signal like you said. Or maybe some bad connections?



Hook the pump up direct and just let it run. Put your foot the floor and crank for about 20 seconds. It will start. Rough... but it'll start. Then see what that does for pressure. VERIFY PRESSURE before driving anywhere. You shouldn't have to crack lines if everything is working right. Some may argue with me. Thats OK.



You might disconnect the fuel line to the filter and ensure that its flowing fuel... and not just a motor shaft spinning with a broken or stripped out impeller hub. Or a stuck open bypass valve. Stick you thumb over it and see if it puts down any pressure. Use a rubber glove and a nice sized bucket.



Some will also argue with me on this... but moving a POS Carter closer to the tank won't do anything for it lasting or doing a better job. You could mount it IN the tank and its not going to help it. The best it will do is make it easier to get to later for when its dead. IE: along the road side on a rainy night.

 

[DDaubenspeck]

Anyone looking for a 2wd 2002 with only 44k miles?

Actually, yes. I know someone who may be very interested. Where in the USA are you at?

What engine RPM are you turning at 70mpg on that 6 speed with 4:10s? What mpgs empty/towing @ 70mpg?

I assume you've got the HO engine, right? Got the 4 wheel disk brakes?

What color, what other options?

 

[emarsh]

truck was ordered 2 tone, grey with silver bottom. ITs a beautiful truck with many extras,It is finally set up just the way I like it. much more stuff than my sig. right now im just fed up with the dealer not standing behind their work, even if it been 16 months. I am victorville, calif, 90 miles from los angeles.

2100 at 70 19 mpg dont tow much yes a ho 6 speed with 4 wheel discs, mud flaps and underfender skirts and hood blanket, I added like the 01's had.

 

[emarsh]

OK heres how it happened from the beginning. I went to move the truck 1 day before we went on vacation, it showed only 3 psi; I thought I will have to check the lift pump when we get back. The next day before leaving I went to move the truck back where it was parked and it would not start.

I thought that the dealer had installed an in tank pump when they did the first VP44. They did not, I had a vulkan pump relocation kit already so I installed the original lift pump with only 12k miles and the vulkan kit. I thought that was all it needed. When it still failed to start I had it towed to the dealer thinking they would have SOME compassion since it had only been 8k and 16 months since they installed the VP44. They did not. I ordered a reman pump and has the lift pump hotwired with a switch and had 5 psi. I had a rough time getting it to start, then let it run for 5 minutes, then shut off the truck and reconnected to computer controlled lift pump. It restarted fine so I went to top off with diesel since it showed 1/4 full. I only got 1 block and I was watching the fuel pressure go to zero in about 10 seconds the engine stopped. Tomorrow I will bleed the lines and start over.

 

[Ncostello]

You need a new pump. Low mileage or even just out of the box is no guarantee that the pump is gonna work fine. I've seen this before. Thats why I have 4 carter lift pumps in my garage long after I sold my 99. I did manage to get one of them to work again. I use it to pump down my diesel tanks when I drop a tank or whatever.

 

[emarsh]

Got truck running this morning, had a leak from the filter housing to the relocate line to the VP44. Took your advice and held the pedal to the floor and cranked for 15 seconds or so. Could have done it last night I guess, but I was dog tired and the storm didnt help, I was cold, the truck was in the driveway NOT under cover! Have the lift pump wired through a relay to a oil pressure switch; now I just have to figgure a way to start the lift pump before the oil pressure switch makes up. Will change the lift pump when I recover from the cost of the injection pump!

 

[Colando]

Marsh, I went through this years ago with my truck, dealer replaced 1st lift pump with same , then dealer replaced 2nd lift pump with same, then dealer replaced 3rd lift pump with intank pump. That was worse than the others only put out 4-5 psi while running down the road. Finally installed Airdog 100 myself , and was the best thing I've done for this truck. Still on my 1st VP-44 and not a problem since putting in Airdog about 4 years ago. I now have 56000 on it and everything working fine. Good Luck

 

[Ncostello]

I once bought a Deutsch two pin connector for my lift pump and wired it to some alligator clips. I'd plug that into my lift pump and run it off straight 12V for a couple min after a filter change. That way I'd get everything full and flowing without bumping the starter 3 times. Unfortunately it would STILL never start without cranking about 20 seconds. Then it would run on about 2 cyl for 20 seconds then smooth out. Thats how all filter changes ever went for me no matter what I did. After that... it would fire instantly everytime until I changed the filter in 5000 miles. I never did bleed any lines ever even after an injector swap.

 

[Gary - K7GLD]

I once bought a Deutsch two pin connector for my lift pump and wired it to some alligator clips. I'd plug that into my lift pump and run it off straight 12V for a couple min after a filter change. That way I'd get everything full and flowing without bumping the starter 3 times. Unfortunately it would STILL never start without cranking about 20 seconds. Then it would run on about 2 cyl for 20 seconds then smooth out. Thats how all filter changes ever went for me no matter what I did. After that... it would fire instantly everytime until I changed the filter in 5000 miles. I never did bleed any lines ever even after an injector swap.

YUP - I have a Walbro pusher pump down on the frame rail, and an added Frantz TP fuel filter just ahead of the VP-44, with a pressure regulator/bypass valve right at the VP-44 inlet. Any time I change fuel filters, I direct wire the Walbro to a 12 volt DC source, and just let it run for 5 minutes or so before trying to start the engine - it completely fills the lines and filter canisters - and the engine always fires right up like nothing had changed...