New with a couple questions.....

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09-18-2010 | 03:36 PM

#16

bryank

Thread Starter

Junior Member

Joined: Sep 2010

Posts: 37

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From: MI

Year: 1999

Model: Cherokee

Engine: 4.0

Quote:

Originally Posted by 95THORxj

there is no fuel filter on your 99. only filter is the strainer.

okay thats what i thought. i replaced that about a month ago.

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09-19-2010 | 08:51 PM

#17

bryank

Thread Starter

Junior Member

Joined: Sep 2010

Posts: 37

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From: MI

Year: 1999

Model: Cherokee

Engine: 4.0

Quote:

Originally Posted by Caish

With the TPS your mostly looking at hole linear the read out is. Starting around .85 closed, (from memory here) to wide open close to 5v.
Make sure that the numbers climb smooth and there is not a sudden drop or spike.

so would the tps cause this problem of dying out for 3-5 seconds every once and a while?

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09-19-2010 | 09:47 PM

#18

Caish

CF Veteran

Joined: Jun 2010

Posts: 1,220

Likes: 4

From: Arkansas

Year: 1987 & 1996

Model: Cherokee

Engine: 4.0

Quote:

Originally Posted by bryank

so would the tps cause this problem of dying out for 3-5 seconds every once and a while?

I can't say it would or not. I could see it causing a lean/rich condition trying to compensate for a random illogical throttle position.

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09-20-2010 | 11:31 AM

#19

BillyBoy

CF Veteran

Joined: Aug 2009

Posts: 1,126

Likes: 30

From: Detroit, Michigan

Year: 1998

Model: Cherokee

Engine: 4.0

Might even be a simple air intake issue. Take out the filter, (not permanently, just to check) and drive it. It might be starving.

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09-20-2010 | 11:32 AM

#20

BillyBoy

CF Veteran

Joined: Aug 2009

Posts: 1,126

Likes: 30

From: Detroit, Michigan

Year: 1998

Model: Cherokee

Engine: 4.0

Also, you might have had some bad gas.

Plus... I'm a true believer in lightly added seafoam to the gas tank. About half of the recommended dosage to not clog stuff up.

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09-21-2010 | 12:35 AM

#21

bryank

Thread Starter

Junior Member

Joined: Sep 2010

Posts: 37

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From: MI

Year: 1999

Model: Cherokee

Engine: 4.0

Quote:

Originally Posted by BillyBoy

Also, you might have had some bad gas.

Plus... I'm a true believer in lightly added seafoam to the gas tank. About half of the recommended dosage to not clog stuff up.

new air filter... and put sea foam in the tank and in the TB and it barely smoked.....

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09-21-2010 | 02:39 AM

#22

gspaceunit

Member

Joined: Jun 2010

Posts: 160

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From: Eugene, Oregon

Year: 1999

Model: Cherokee

Engine: 4.0 L I6 (Ford 4.2L Injector Upgrade and Yellow Top Optima))

my jeep did that for a week till I figured it out... I have a amp and its wired into the main fuse/relay box... which was touching the plastic .. shorting out and melting the plastic.. check that... the bolt was lose that holds the battery lead on... you never know

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