Luke3204 Posted September 23, 2019 Share Posted September 23, 2019 I just recently bought an 88 Comanche that is a really big Frankenstein with a 91 Cherokee. I went to fill up the tank and as usual in jeeps, the pump wanted to stop every 5 seconds. Tried going slowly but nothing worked. It took me 10 minutes to get 2 dollars in, and when I did the gas started to overflow. That is where my bigger issue is... there is barely any gas in the tank and it won’t fill up? Any help? THANKS! Link to comment Share on other sites More sharing options...
Jeep Driver Posted September 23, 2019 Share Posted September 23, 2019 4 minutes ago, Luke3204 said: is a really big Frankenstein Check the filler hose and make sure it's not kinked. What tank? Link to comment Share on other sites More sharing options...
coolwind57 Posted September 24, 2019 Share Posted September 24, 2019 I remember putting a new tank on a couple years ago and getting those hoses lined up in such tight quarters was a b#@#! I bet whoever worked on it last did the best they could at the moment and said "close enough". Hate to say it, but you may need to drop the tank and bit and look for kinks or abnormalities on those rubber lines leading into and out of the tank. Link to comment Share on other sites More sharing options...
Luke3204 Posted October 4, 2019 Author Share Posted October 4, 2019 Thanks for the help, I ended up dropping the tank and realizing it was full because my gas gauge is broken. I replaced the fuel pump and put it back in. Truck ran great that night until the next morning it just just shut off. Tried cranking it back up but will only start if I pour gas into the TBI. I’m getting gas into the fuel rail and I’m about to check the fuel pressure. Any ideas? Thanks! Link to comment Share on other sites More sharing options...
Luke3204 Posted October 4, 2019 Author Share Posted October 4, 2019 On 9/23/2019 at 7:05 PM, Jeep Driver said: Check the filler hose and make sure it's not kinked. What tank? Seems to be about a 10-12 gallon tank. Pretty sure it’s the stock tank from the MJ Link to comment Share on other sites More sharing options...
Luke3204 Posted October 4, 2019 Author Share Posted October 4, 2019 Also I believe the engine is from a 91 Cherokee Link to comment Share on other sites More sharing options...
Luke3204 Posted October 4, 2019 Author Share Posted October 4, 2019 Just tested the pressure in the fuel rail, got about 5 psi which makes me assume that is is the fuel pressure regulator? Link to comment Share on other sites More sharing options...
Luke3204 Posted October 4, 2019 Author Share Posted October 4, 2019 Throttle body not TBI sorry Link to comment Share on other sites More sharing options...
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