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Unread 10-26-2013, 08:44 PM   #46
aglinks
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1983 CJ7 
 
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Ok I think I'm gonna have to bite the bullet and replace the fuel pump again, what is a good (preferably not super expensive) inline pump I can use? As previously mentioned, it's a chevy 350 with TBI. I would prefer my next pump to be quieter. The one I have now is so loud I can't hear myself think haha

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Unread 10-26-2013, 09:08 PM   #47
dg6772
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I just took mine on a 200 mile run, on and off road. Mud, sand and some hill climbing with the return trip on the freeway. My stock, in-tank pump is quiet and flawless.

Just a thought if your doing it anyway........

Dave in Muskegon
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Unread 11-01-2013, 08:56 PM   #48
aglinks
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Any input on an in-line fuel pump?
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Unread 01-04-2014, 08:54 AM   #49
aglinks
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So I just replaced my fuel pump and filter on the jeep and took it for a test run. It did great driving into and around globe, but coming up the mountain to go home it cut out again near the top of the mountain. Every time it choked I could hear like a clicking coming from near the dash and firewall area...any ideas?
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Unread 01-04-2014, 09:00 AM   #50
dg6772
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Sounds like a loose connection of some sort

Dave in Muskegon
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Unread 01-04-2014, 12:59 PM   #51
Spieg8
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Quote:
Originally Posted by aglinks View Post
So I just replaced my fuel pump and filter on the jeep and took it for a test run. It did great driving into and around globe, but coming up the mountain to go home it cut out again near the top of the mountain. Every time it choked I could hear like a clicking coming from near the dash and firewall area...any ideas?
A few ideas;

1) When it dies, have you tried pulling a spark plug wire and checking for juice? You should be able to arc to ground while cranking if the ignition is working.

2) Is there a relay that powers the pump? Clicking sound could be a fried relay or bad power lead.

3) Do you have a safety switch (cuts power to pump and/or ignition when oil pressure drops too low)? I've seen them do some strange stuff when they go bad (initially becomes apparent when they get hot).

4) You may also want to look into a pump like this;
http://www.novak-adapt.com/catalog/f...uel_module.htm
Probably use pump option #2... with return line and no regulator (your TBI should regulate internally). Only thing I don't like is the plastic float (easy to swap in a brass float... for the price, you'd think Novak build them that way).
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Unread 01-06-2014, 11:21 AM   #52
aglinks
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I'm gonna try to get it to die again so I can determine if it's fuel or spark. Hopefully I can have that determined by the end of the week.
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Unread 02-09-2014, 04:46 PM   #53
aglinks
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So I have run the jeep a bunch of times trying to get it to completely die. I have been unsuccessful, instead it just chokes and looses power. It always returns to idle if I let off the gas though. I have done everything I can think of and this weekend I was talking to an old jeeper/mechanic and he said that if it were him he would replace the whole TBI system with a carb. He claims that this would be far simpler in the long run and less of a headache...Ive never really had a carburetor vehicle so I don't know much about them. What is y'alls opinion?
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Unread 02-09-2014, 06:27 PM   #54
dg6772
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Once your system is repaired you'll be better off with it. I did my first tbi install last year. It was a large p.i.a. I had to use all of my resources to get it running. Now that it is I couldn't be happier. Better starting,better incline running. Better dependability. I used to have a carbed jeep and must confess I had little to no trouble with it.I would stick with it if it was me. My $.02 anyway.

Dave in Muskegon using JeepForum
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Unread 02-10-2014, 07:58 AM   #55
Matt1981CJ7
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FWIW, I agree with the old mechanic. I think a tbi adds complexity and makes tuning issues more difficult to diagnose and correct.

But then I'm an old fart, and I don't mind tinkering with carbs.

Matt
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Unread 02-10-2014, 12:45 PM   #56
aglinks
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So I just priced the carb switch and I think ill have to save my pennies for a while haha its much more expensive than I thought it would be.
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Unread 02-10-2014, 01:08 PM   #57
John Strenk
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Quote:
Originally Posted by aglinks View Post
..... I have a Chevy 350 with TBI and it was running at about 200-205 degrees when all this happened. Thanks guys!
Doe s the 350 V8 TBI use a computer to control the engine? Wouldn't it have some sort of diagnostic code?
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Unread 02-10-2014, 01:56 PM   #58
aglinks
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It does have a computer and it has not given me a diagnostic code for some reason.
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Unread 02-10-2014, 02:11 PM   #59
james04si
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I almost wonder if we are chasing the TBI when it could be something else. If you just replace it for a carb and you still have the same issues that would be an expensive way to find out that it's something else. How is your ICM? Any goo on the fender below it? Have you checked for spark when it dies and won't start back up? I once had a Honda that ran terrible when it got hot and the coil was the culprit.
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Unread 02-10-2014, 04:56 PM   #60
aglinks
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So I have replaced the following:
ICM
Plugs
Wires
Cap
Rotor
Coil
Fuel Pump
Fuel Filter
Added a heat shield to protect the inline filter
Fuel pump relay
and chased all the wires I could to make sure grounds and such were good.

I haven't gotten it to actually die since I learned about checking for spark (I'm a noob). Since then it just chokes but it always comes back.
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