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shereenb 05-24-2006 01:33 PM

air in fuel line
my 98 wrangler runs fine for the first little while, at freeway speed, and then loses power, coughs, and sputters. power slowly decreases, until it goes down to 20 miles per hour. it's not uniform on how long it runs good, sometimes for 20 minutes, sometimes 2 hours. when i stop, i check the pressure in the fuel line, and it's usually full of air. yesterday, i tried letting all the air out until gas came through, but the air ran out, and no gas came thru. same thing happened last year, so i replaced the wire and hose harness coming of the gas tank. would it be gone out again, or is there something else i might check. PLEASE HELP!!:( :(

bluvikng 05-24-2006 02:10 PM

Sounds like you may have a crack in the fuel line somewhere. I would not think it would be too hard to find. Light a match to see kidding, really, don't do that. :)

Are you sure that your gas cap is sealing properly? Make sure it is the correct one for your Jeep.

As this appears to be your first post, WELCOME to this Forum!!!!!!

JeepCrawler98 05-25-2006 11:41 AM

What level is the gas tank when it's doing this? any pattern?

mswilder 05-25-2006 12:05 PM

I have exactly the same problem, as the problem is random and it looses power and just seems like it not getting enough gas. i have had the gas tank level, and on uphills and down hills. it dosnt matter. but i just dont know what to do, i never though about the fuel line though, is that a problem that can be fixed or do i just deal with it,(if i have to deal with it the next cliff i come to my jeep is going off because the problem will not stop so please tell me something is fixable).

JeepCrawler98 05-27-2006 01:15 AM

I dont think it could be the fuel line (I mean a leaky fuel line could definitely cause fueling problems, but not air in the system, especially when the Jeep is running for a while) - the TJ fuel system is pressurized at roughly 40 to 60psi; air would have a hard time getting in there (considering the atmosphere is at 0psi [relative]) and fuel should just leak out. I would think the problem would be with the fuel pump or pick-up.

mswilder 05-27-2006 10:00 PM

i have replaced the fuel pump and it relieved one problem i had but it didnt fix this one it continues and sometimes i actully think it is worse. so any other ideas. i am all out of options and will take any suggestions.

bluvikng 05-28-2006 11:21 AM

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