fuel pump

Initially, I thought the cause of my problem would be a bad fuel pump or a regulator valve. I dropped the tank and discovered the return vent hose had a broken T. I replaced the T and hoses, and it now starts the first time I crank it over. Hopefully, this may help someone with a similar issue...

I thought I fixed my electrical issue to no avail its like chasing my own tail around, I was up at Jeep invasion and my wrangler failed to start so I mess with the relays and I dont know if me shaking the fuse box around on accident or me messing with the fuel pump relay I pulled it and the Jeep...

Hi forum, Been running into an issue with my jeep after coming back from a week long vacation. Was driving fine on the highway for about 40 miles then suddenly couldn't create power anymore. Sounded like a faint whistling coming from the engine block area. Letting off the power for a few...

Ok, it’s hot in Florida. I ran my 2005 Unlimited particularly low (gas). I filled it full at the gas station. As soon as I pulled out, my front end started vibrating with acceleration. It’s fine maintaining speed, but shakes when given gas. So would this be the fuel pump going bad? Would I most...

I have 2001 4.0. Long crank issue. I check my fuel pressure at the fuel rail. Cranks up to 47 psi. As soon as I turn the engine off, it drops to almost 0. From what I have researched, pretty sure it is the one way check valve in the fuel pump assembly. Some say the check valve in on top of the...

Hello! I was having issues with my fuel pump priming. PO replaced OEM fuel pump with something crappy. So I got an OEM fuel pump from Dead Jeep and put a new filter on it. I did buy a new regulator, but didn't install because Dead Jeep tested this pump and it's all working fine according to...

Hi, not finding clear answers on troubleshooting steps. - jeep is slow to start. It does crank, fuel pump comes on. Engine does not start until 2nd or 3rd turn. - tested fuel pressure at shader valve. Pressure is zero when cycling key and running the engine. - switched the horn and fuel...

New member, old Jeeper. I have been perusing the threads here and have found bits and pieces of information but nothing seems to really hit on my problem. Any advice would be appreciated. 2004 TJ X w/150k on the clock. Currently on my 4th fuel pump. OE died at 115k. Replaced with DFG1221 @...

Good evening all. I've been lurking here a bit and decided to ask some of the pros on here what the heck is wrong with this thing. No codes except a few previous from 02 sensor, evap, crank pos sensor, but those codes disappeared awhile ago and never came back. Startup cold flawless. Runs...

I just replaced my fuel pump, on my 1997 Jeep Wrangler Sport with a inline six, and when I was reconnecting the fuel pump to the connector on the Jeep the red locking clip does not work. I messed with it for awhile and can get it to slide when its not connect but doesn't slide to lock the two...

In December I experienced a flashing check engine light while driving. I replaced all 4 O2 sensors and those seemed to smooth everything out. That thread: https://wranglertjforum.com/threads/check-engine-light-flashed-while-driving.67087/ Since then I've experienced two instances of hesitation...

Quick bit of background before I describe my problem. I bought a 99 Sport 4.0 automatic in September with 190k miles. The car died on me on the way home from the purchase, turned out to be the fuel pump which my mechanic replaced and she's been running fine for last couple months of ownership...

About a week ago at the gas station, I got back in and had no power at all when I put the key in. I 'tightened' the connections to the battery (which were not loose) and it started right up. Yesterday I got gas and drove about a mile and it stalled as I slowed down for the red light. Wouldn't...

I’m in the middle of replacing the fuel pump in my 2004. Ordered the Delphi DE FG1221. Upon unboxing the new pump, it’s physically about 2 inches longer than my oem pump. Test fit in the fuel tank has it bottoming out and sticking out the top of the tank. Am I missing something? I’ve triple...

I’ve read every forum on here and still haven’t found an answer. Drove ‘99 jeep tj manual i6 just fine and then the next day.. Crank no start. No codes. No pressure at schrader valve. Changed fuel pump. Have 60psi at schrader. Changed the cam sensor. Nothing. Went ahead and changed the whole...

Hi, new member. First post. I recently purchased a 1998 TJ 4.0 with 53,000 miles on it. It runs phenomenally well but won't start without starter fluid. I checked the fuel pressure at the rail and I'm getting 0psi. The fuel pump fuse and relay are good. After starting with starting fluid...

Hey all, just got done doing some trouble shooting for a code i was getting. Tested my fuel pressure and it drops slowly to 0 after pressurizing. Holds steady at 43 PSI while idling but that is still too low. Long story short, looking for a direct link or parts number for the Bosch OE fuel...

After working on upgrading some suspension components all last week I took the TJ (2005 X model with 6M 143k miles) for a test drive yesterday and everything was great. Tried to start it a couple hours later and it turns over freely but doesn't start, there is no sputtering or anything...

Need some help! 2000 Jeep Wrangler Sport 4.6L Inline 6 Stroker (new) Was driving just the other day, 97 degree weather here in Texas, jeep just shut down on me. Power on still, almost like it was out of fuel. I had just filled up the tank with 91 octane (what i use for the stroker), so i had...

I have a 2000 TJ Wrangler Sport with the 4.0 and a little over 158K miles on it. Since I got it I’m getting indications of a leaking or cracked seal around the fuel sending unit; I get a strong smell of gasoline any time I fill the tank more than 3/4 full, and a look with a black light...