I have a running issue with my truck, most likely the fuel pump. I have a spare for it, I was wondering if it was easier to drop the fuel tank or pull off the box to get at it?

Also, is there an in tank fuel filter that i would need to replace?

86 22RE

thanks

 

Take the bed loose and slide it back about 18". That's the only way to go.

 

OK thanks

 

There's a nylon intake screen called a "sock" that does need to be replaced. Also a short length of rubber fuel line, and a few other parts. autohausaz is having a MONSTER sale on Denso pump kits that come with sock & all the little parts - just $130 which is an incredible deal. Here's what the two main sock types look like - IDK which is the right one for your 86:






EDIT: Forgot to mention; you'll want a pump bracket gasket and probably a new set of bracket screws which you can get from the dealer. Your current screws are probably completely rusted.

 

OK sounds good. I have a suspician that the pump itself is ok, but that the sock is almost completely clogged up. When i beat my truck up a bit my driving over speed bumps fast and over curbs and other bumps it often works better for a short period of time

 

Could also be corrosion. But while you're in there, may as well replace the pump. If it's original it has certainly give a lot of years of good service. Probably earned its retirement, lol.

 

Before you bother with any of that, jump +B and FP in the diagnostic block. Use heavy gauge wire. If the truck runs, and drives well the fuel pump isn't likely to be the problem.

Jumping those terminals will feed the pump 12v, bypassing the COR.

 

It only feeds the pump switched ignition power from the EFI relay....It is always a good idea to check that you actually have 12V at the diagnostic panel (with ignition on) before you come to conclusions.