Engine/Transmission (1998.5 - 2002) 15 idle, 8-9 WOT

[Texas Diesel]

New lift pump just installed, 15 idle and 8-9 WOT with empty truck. Getting ready for a tow to Florida in a few days and had the OEM pump replaced with a #3990105. The WOT number seems low, any thoughts?

 

[Bigsaint]

I wouldn't sweat those numbers. Go enjoy your trip .



Scott W.

 

[JMarkos]

I just had mine replaced last wek and got my gauge hooked up today.



15 idle 10 cruise 5 WOT------whats up with that? Should I go back to the dealer?

 

[rspinks]

5psi is too low at WOT. Either you've got a restriction or the new pump.

 

[rspinks]

oops

Forgot to finish the last sentence, should read "new pump is bad".