About 6 months ago my truck started to heat up and shut down. When the temperature was hot outside and you would drive, the fuel pump would heat up and start to shut down and the truck started bucking and missing and eventually die. You would have to sit on the side of the road for about 30 mins and wait for everything to cool down then you would be good to go for another 5-10 miles depending on how hot the temperature was. Well I took it to a shop and they replaced the Fuel pump for the front tank and the fuel pump on the frame and the truck has ran good ever since. I have drove the truck long distances all over the place and it has been great. But now my truck is doing the exact same thing again. Could my truck be eating up another fuel pump again? The engine is a 302 if that helps. Thanks.

 

there is a part in the frame rail, right before the high pressure pump called a mechanical fuel transfer switch reserve. it has the lines from the 2 tanks running into it from the back, and comes out with 2 lines from the front.the purpose of this unit is to put the returning fuel back into the tank it came from. over the years, it gets filled with crud, and stops the fuel flow, just as if the fuel pumps are bad. When your truck breaks down, it has no fuel pressure, but the pumps are still running. you can hold your hand near the high pressure pump, and it will be hot from trying to pump air.

Good news, Ford still sells the part. Bad news, it costs $240. I have seen guys on here pick it up for less than $100. That depends on how quick you need to fix the truck.


By the way, I have replaced the one on my 89 2 times now, in 490,000 miles

 

Thanks that makes good sense. I will definitely check that out. Can you clean the crud out of this part or do you have to replace it.

 

there is no rebuild kit. I took the last one apart, and the moisture had eaten up the little metal parts. the whole thing was full of rusty mud. Take it apart, it's already broke, so if you can fix it.... all good, if not your only out some time.

it has a shield coveing that has to come off on some trucks, then there are 2 bolts from the outside of the frame. you pull the lines off the same way you change a fuel filter. it's kinda self explainatory once you look at it. I think I may have some pics of it on photo bucket. If I do, 'll post them for you

 

the only pics I have ar from when I took it apart, but they show what was wrong

 

Thanks. Would there may be another name for this part? I'm typing in mechanical fuel transfer switch reserve on google and nothing is popping up. Where did you order yours from.

 

I got mine from ford, I can post a part number, but the receipt is at home, and I'm at work.I remember seing some other threads recently in the 87 forums, maybe I can find another name, otherwise, I'll post the number tomorrow

 

try fuel selector valve {dfr}

 

Thanks for your help. We did get the part out and we got it apart. But we couldn't figure out how to get the two needles out.

 

Amazon.com: F1uz9b263b Reservoir Assembly-Fuel Selector Oem Ford: Automotive

F1uz9b263b - Motorcraft part number.

Purchased it, delivery was prompt, in a Motorcraft box and new as described, function is good.

 

pop the reeds just like a 2 stroke carb, with a tiny screwdriver, then take a pair if needle nose, and grab the center shat, kinda wiggle/pull, it will pop out.