Engine/Transmission (1994 - 1998) Fuel leak fixed - lower idle?

[PaulG1]

I recently had a fuel leak in the return line, replaced both lines and fuel filter, now it idles about 50 to 75 rpm lower than it used to.



BTW - thanks All for the recent tips on how to access the lines (leaning the brake booster made all the difference - just a few bandaids needed -).



The truck sat for about 5 days before I could fix it - just thinking maybe a lot of fuel would have drained back into through the supply line empting the P7100. I had to prime it about 300 pushes (ouch - my thumb!) before it would start. When it started it coughed sputtered then when it got to constant rpm about 34 seconds later it idled at about 600 after running about 3 minutes it now idles at about 750 rpm awioth is about 75 lower than previous.



Any ideas to what has caused this - can I drive it or do I need to purge air (if that is possible) or something first.



Thanks,



Paul

 

[SBrandon]

Run it, if you want it to idle faster make the adjustment. But if it runs fine now with no sputtering I wouldnt worry about it.

 

[wcjp]

My idle also dropped when I replaced the supply/return line. I readjusted the idle. I also had to replace the soft line to the liftpump from the fuel preheater.

 

[PaulG1]

My idle also dropped when I replaced the supply/return line. I readjusted the idle. I also had to replace the soft line to the liftpump from the fuel preheater.

WCJP,



Is the line from the lift pump to the fuel heater a formed tube (dealer part) or just a straight piece of tubing that makes the bend. I tried a piece of 1/2" USCG tubing (thick wall marine) but it didn't make the bend to well - ended up putting the old one back on for now.



Thanks,



Paul