RAD

??????

Don’t know much about this type of pump but it seems like it would be harder to blow through than it did! i think if I tried to take it apart I would destroy too much of the guts to see what’s in it, but it’s out and on the concrete!! It is a rollervane type pump. Better if you googled it and looked at the way it works.

I would like to try something to definitely rule out the LP. i am want to take the airtex apart to look at the workings . i cannot even get 50’ without quitting.

I would like to try something to definitely rule out the LP. i am want to take the airtex apart to look at the workings .

I got one and put it on thursday, an in-line type between the fuel filter and IP.

It’s an airtex e7153

Recent observations went to crank it, nothing waited a bit, same thing. opend and bled three lines while LP was running, cranked it up and started. Let it warm up a bit and turned the A/C on. Noticeable rpm drop, but picked back up. I could not tell how many PSI it dropped, but it did. Turned A/C off, ran normally. Turned it back on, rpm and psi drop. Engine rpm picked back up and a few seconds later, it died. ECM and top of IP both cool to the touch. It ran long enough to move the water temp guage just over 140.

Git ‘im!

i dunno, and it had two different gear sets in it so 4 wheel drive was useless. back to the non running one, the fuel delivery setup that dripley suggested is way out of my reach right now. may just wait another month and get the fass ddrp and the relay pigtail fass offers.will that take care of the IP demands?

once all that stuff started going out i took it off. it had double smog systems. i think one for each side of the motor, i got it with worn rings and no a/c. it was some kind of aftermarket conversion truck. it is badged 250 but had a narrowed dana 70 dually 205 transfer case and a dana 60 front axle. after checking it should have had a dana 60 rear, 208 transfer cas and a 8-lug 44 in the front.

i did think about it, i have just about talked myself out of it. i just hope i have not cause any undo damage to the IP. the red truck is gasoline,and not stock, it has quite a few goodies on and in the engine.

will look in a bit, time to get fed!!

i have had to depend on other people wayyyy too long, yall will prolly not like this, i have to get this truck running, for the time being i may have to get a delphi lift pump. oem design. hopefully it will last until the tax man comes!!! i just hope that will solve the fuel pressure/dying thing for now. question is, how can i wire it to relieve the ECM, will it crank if the ECM foes not find a lift pump? yes, the red dodge truck is fun to drive, but 7 mpg its not that econimical.

was a very fun truck! ended up with dana 60 w/big knuckles on the front, chevy 35 spline outers, locker and 5:38 gears np205, and a dana 60hd in the back (welded)., put a disc brake kit on it.

no, it was idling in my yard, just kept pressing the pedal up to 2,000 rpms and watching the fuel pressure gage go down to 13psi, then let off the petal immediately and then it died.

talking about ECM's, found these pictures on my computer. this is a data sheet that was sent back to me with my repaired ECM. Not sure if the "AW Drive" means anything other than "All Wheel Drive", which my truck is not "All Wheel Drive"/4 wheel drive. i do not know if this makes a difference. Is the engine in all these 3/4 and 1 ton trucks considered to be "heavy duty"? here are the other stickers and info that is on my ECM. wish i had my engine stamp to compare them with.

Had a '74 J10. The rear winch on the W250 is still attached tho the rear part of the frame from the J10, Slid right in between the frame rails on the W250 thats why I put the J10 badge on there.

Yes is was quickly after it died that I tried to start it. It wasn’t too terribly long after (1 minute ir so) that i would cycle the key and hear the lift pump running. should have touched the top of the IP and reached to the ECM and see if they were hot.

Shoot, I wouldn’t know where to stop, 4500???? you let me know how high and for how long, I will do it. Dave110 i am guessing it’s ok???? Could take it back off and sent it to the same people I sent it to earlier this year or someone else???? i saw that FASS sells a relay/power supply pigtail kit I may get in order to get the LP off the ECM.

Never dropped below 15 when cranking. holding steady at 17 Dipped down to 13 at 2000 roms let off the pedal and it died. Tried to start it again and no lift pump. Dipped down to 13 at 2000 roms let off the pedal and it died. Tried to start it again and no lift pump.

yes, install it right at 2 yeas ago. more good info for me once i get this thing drivable again!!

the prices for those parts can add up very quickly. the last thing i need is to replace the IP AGAIN!! a low pressure warning device seems to be a good investment also

I hope so!! Been down since February!!

A good quality scanner, it’s no smarty but it seems to be a good one. Just OBD 2. Pocked it up at autozone. its an Innova 3040 scanner