Emergency HELP

[noahsdad]

OKay guys I need you brains all mashed together. I know it might be a sin but I need you help with something other than a bronco. This should be pretty easy for the supreme commanders out there. My bro in law just bought 1990 Jeep CHerokee 4.0 L automaticw/ 4wd nice looking little guy but they are having serious problems with it and we have to get it fixed before friday(he has to return to duty he just got home from Iraq for the holidays). The truck started and ran fine until my inlaws put ina new fuel pump inside the tank. They say they can hear it running but now the thing wont start. I need all of your ideas so we can get this thing together for him. I am going over after work to work on it and will check back for any of your brilliant ideas, thanks guys and thanks on behalf of my bro in law US Army

 

[Stubby1971]

sounds stupid but.... make sure the fuel lines are hooked up properly- that they aren't sucking air- see if there is a fuel bleed- like the valve stem on a tire, that would be under the hood- maybe there's air in the lines- also is there gas in the tank( i've seen that before). does the new pump use the stock pig tail or did they have to splice the wires together? good luck

 

[Yardape]

Not really alot of info included there. What sort of diagnostics have been tryed so far? Checked for fuel at the engine? At the fuel filter? Is there spark? Why was the pump changed? Did the other one go? you said it ran until the new one was put in, well if it ran why did it get removed? No that those are out of the way, are you sure the old one was toast? do you have access to it. Try and hook it up to power and see if it runs. Are you doing this over the phone talking to them or are you at the vehicle, are you sure the new pump is actually running. Fuel pump enertia switch tripped? fuel filter plugged? See what I mean, and I could go on.

 

[BLADE262US]

LOL did they put gas back in it after putting the tank back in >? /emoticons/[email protected] 2x" width="20" height="20" />

 

[Yardape]

Hey my 1st bronco sat for just over a week because I assumed the pump was gone. I put gas in it and woohoo the pump started working like magic

 

[noahsdad]

OKay guys thank you for all the suggestions. We were changing the pump because it was leaking at the lock ring and the gas gauge unit was not working. Turns out the brand new fuel pump assy. was bad from the store so took it back got another one and vroom it goes. Like I said I would have given more info but i was doing this over the phone. Everything is good to go now thanks again he is leaving for texas tomorrow with his new 4wd

 

[Big Country]

i would have been ****** personally, i know machines can be bad and people make mistakes but spending the time to install something that is supposed to be quality just to find out ooops it's broke too. very frustrating, anywa, glad it's working now, have fun with it...

 

[Roadkill]

You should try being an army mechanic, ALL your parts come from the lowest bidder. I can't count how many non-functional "new" parts I installed before I turned in my toolbox and changed MOS. (MOS is army-ese for job title)

 

[Big Country]

would have been good practice, you could install parts with a blindfold after doing it so often

 

[Yardape]

while getting shot at... not bad

 

[Big Country]

i'm tellin you, no limit soldiers hang in there Roadkill!!!!!!!!!!!!!!!!!!!

 

[firelt90bronco]

Go over the basics:

1.Fuel is getting to the engine.

2.The firing order is correct.

3.It gets spark.

4. It has oil

5. All plugs are plugged in.

6. Its timed properly.

 

[Yardape]

Go over the basics: 1.Fuel is getting to the engine.

2.The firing order is correct.

3.It gets spark.

4. It has oil

5. All plugs are plugged in.

6. Its timed properly.

Or you can just remove the new fuel pump and take it back and get another one, which ever.

 

[firelt90bronco]

Why bust your ass removing fuel pump, just make a jumper wire and jump the fuel pump relay.

 

[noahsdad]

Well he left for texas friday at about 5 pm and we haven't got a call yet so appearantly things are working okay on it, me and my father in law will be so happy to recieve the call that he is back on base. I will tell you what after working on this cherokee i am so dang glad I own my bronco that thing is a real pain in the butt. "Its a jeep thing, you wouldn't understand" must mean you are into self punishment and like spending money I dont want to understand that Jeep stands for Just Empty Every Pocket

 

[broncobob58]

Well he left for texas friday at about 5 pm and we haven't got a call yet so appearantly things are working okay on it, me and my father in law will be so happy to recieve the call that he is back on base. I will tell you what after working on this cherokee i am so dang glad I own my bronco that thing is a real pain in the butt. "Its a jeep thing, you wouldn't understand" must mean you are into self punishment and like spending money I dont want to understand that Jeep stands for Just Empty Every Pocket

Thats funny,I just got a call the other day from my girlfriend's niece,her 90 cherokee won't start and she wants me to take a look at it.It has a fuel issue (assuming the fuel pump).I put a motor in that thing four years ago @ 122,000 miles and it seems she's always putting money in it.

 

[Big Country]

a new motor at 122,000 that is way too early, unless you just ore it up

 

[broncobob58]

a new motor at 122,000 that is way too early, unless you just ore it up

I don't remember what the problem was with the motor(could of been seized)never tried it.They bought a new motor and wanted me to put it in.122,000 seemed low for the motor to be shot but Iv'e seen them crap out as little as 23,000m (3.8l Buick v-6) May have lost oil pressure or got severely overheated.

 

[Mike @ Tracy]

I don't remember what the problem was with the motor(could of been seized)never tried it.They bought a new motor and wanted me to put it in.122,000 seemed low for the motor to be shot but Iv'e seen them crap out as little as 23,000m (3.8l Buick v-6) May have lost oil pressure or got severely overheated.

On the jeep issue, My wife had a limited edition cherokee an 89. We soon discovered what JEEP stands for, Just Exchange Every Part. I got so sick of working on it I sold it for 300 bucks.