can't change the fuel filter as it's 1 in 3 w/ the pump and pressure regulator in the tank this model. Thanks

 

I've been leanin that way from research. However, won't the CPS / CKP throw a code??? Thanks

 

Not ALWAYS, Sometimes the computer won't pick up a problem from the CKP.

TESTING PROCEDURE 1991 – 2001 4.0L H.O. engines
1. Near the rear of intake manifold, disconnect sensor pigtail harness connector from main wiring harness.
2. Place an ohmmeter across terminals B and C. Ohmmeter should be set to 1K-to-1OK scale for this test.
3. The meter reading should be open (infinite resistance). Replace sensor if a low resistance is indicated.

 

Okay so my fuel pump won't pump. I checked to make sure im geting power back there and the meter says I'm getting 10 volts is the anything besides the fuel pump itself that could be wrong? And should replace the oe pump( just not sure how reliable these are) or just buy an external one and remove the old pump? Help appreciated thanks.

 

There is no vacuum ball behind my front bumper lol, just checked

 

There's your problem
haha

 

That may be an issue lmao

 

If you don't have that vacuum ball, your vents will never work.

Mine always worked fine, then I did some pretty rough off-roading and they stopped working! I checked my vacuum ball and sure enough there was a crack! I used some gorilla glue to close up the crack and my vents started working again!

 

I just found the ball on my stock bumper. Now i need new tubing and find where to route it

 

If you can't figure it out, I can take pictures of mine after I get off work (about 3 hours) let me know if you need em.

 

Hmm I have never seen it but ok I believe it's possible. And I have never heard of an 89 with out a fuel filter. Mines an 89 and I have a fuel filter and my pumps in the tank. You might want to go check above your rear axle on the unibody rail driver side. I can almost bet there is a filter there.

 

Ya ill need some pics please, much appreciated

 

Well, yea I said I put a new fuel filter in MINE, which is an '89... But the guy having the issue has a '97. I'm not too sure about those.

 

The bigger hose on the ball is fine, the smaller hose where it connects to the ball itself has a crack going down it. Would this make the vents not work what so ever?

 

Especially when it comes to equipment I have on my own rig...yes.

I went though the research when it came time to change mine the first time. Lots of misinformation on the topic since the factory service manual listed the incorrect fluid spec....