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Full Throttle Death

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nixt
Member


Joined: 17 Aug 2005
Location: Atlanta/Athens, Georgia

PostPosted: Mon Nov 28, 2005 9:46 pm    Post subject: Full Throttle Death Reply with quote

I have a 1998 5.9 Limited ZJ. My problem is when I pin the accelorator to the floor the engine craps out like it is starved for fuel. It only has a little over 92,000 miles on it. Also sometimes it gives me a rough idle in the morning. Has anyone else had this problem? Or does anyone have any ideas on how to fix it? The only engine mod currently is a K&N air filter.
Thanks,
Nixt
_________________
1998 ZJ 5.9 Limited W/242 swap
JKS disconnects & Garmin GPS
Heavy duty OME Suspension kit
with 2" coil spacers for 3.5-3.75 total lift
235/85R16 Goodyear MTR's Measure a true 32"

Life has No Value,
But Death Has Its Price.
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cajzmere
Member


Joined: 19 Jul 2005
Location: Rochester, NY AKA NY Tundra.

PostPosted: Thu Dec 01, 2005 12:26 pm    Post subject: Reply with quote

This sounds like your cat converter. It would be the right time for it mileage wise. Disconnect the cat and see what happens.
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viper24242
Member


Joined: 08 Jul 2005
Location: Harrisonburg, VA

PostPosted: Thu Dec 01, 2005 1:13 pm    Post subject: Reply with quote

I have a 94 5.2L and at about 86,000 my cat converter crapped out. It felt like the trans wanted to shift when I hit the gas but it seemed like the engine couldn't get out of its own way to give it enough torque to shift. Took it to a friend and he said that clogged wan't the word for how messed up my cat was.
_________________
'94 Grand 5.2L
2" budget boost
31" mud kings
Flowmaster 50
Rusty's air tube
Rusty's steering stabilizer
AEM throttle body spacer
120 amp alternator upgrade
Rusty's Tie Rod Conversion
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nixt
Member


Joined: 17 Aug 2005
Location: Atlanta/Athens, Georgia

PostPosted: Thu Dec 01, 2005 1:36 pm    Post subject: Full Throttle Reply with quote

Taking the cat off sounds like a good idea. I bought the Jeep last month (from Texas) and it had just passed Texas emissions however, I live in Georgia and they will not accept out of state emissions tests. I have to get it tested here in Georgia next month before I can renew my tag, so I am probably going to hold off on removing it until after the test. I just don't want to screw something up and then have to pay a fine because I failed the emissions test. Thanks for the help though, and the cat is the first thing I am going to have checked out.
Nixt
_________________
1998 ZJ 5.9 Limited W/242 swap
JKS disconnects & Garmin GPS
Heavy duty OME Suspension kit
with 2" coil spacers for 3.5-3.75 total lift
235/85R16 Goodyear MTR's Measure a true 32"

Life has No Value,
But Death Has Its Price.
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viper24242
Member


Joined: 08 Jul 2005
Location: Harrisonburg, VA

PostPosted: Thu Dec 01, 2005 5:41 pm    Post subject: Reply with quote

I wouldn't take the cat off completely. I would get a high flow cat so you would never have to worry about having to put one on every year when you get your car inspected.
_________________
'94 Grand 5.2L
2" budget boost
31" mud kings
Flowmaster 50
Rusty's air tube
Rusty's steering stabilizer
AEM throttle body spacer
120 amp alternator upgrade
Rusty's Tie Rod Conversion
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nixt
Member


Joined: 17 Aug 2005
Location: Atlanta/Athens, Georgia

PostPosted: Mon Dec 05, 2005 8:27 am    Post subject: Full Throttle Death Reply with quote

Okay, I took my ZJ to the nearest muffler shop and found out that I need a new muffler. The muffler was badly dented and there was metal rattling around in it when you tapped it. The muffler was also pockmarked with rust holes on the exit side of it. The guy took temps from the catalytic converter while it was running and said that it was working fine. There were no check engine lights, codes, or problems when they ran the dianostics....so I don't know. I obviously need a new muffler, but could that be the cause of the engine's problems? Any help would be appreciated!
Nixt
_________________
1998 ZJ 5.9 Limited W/242 swap
JKS disconnects & Garmin GPS
Heavy duty OME Suspension kit
with 2" coil spacers for 3.5-3.75 total lift
235/85R16 Goodyear MTR's Measure a true 32"

Life has No Value,
But Death Has Its Price.
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viper24242
Member


Joined: 08 Jul 2005
Location: Harrisonburg, VA

PostPosted: Mon Dec 05, 2005 10:09 am    Post subject: Reply with quote

When my car started to act up there were no error codes. I actually began to doubt that my check engine light was working or if I even had one. But I do and it works. My buddy who is studying to be a mechanic told me to think of an engine as just a big air pump. The better and faster you can get clean air in and dirty air out the better it will perform. So if you have stuff flying around the inside of your muffler it might cause blockage. But what do I know, I'm not an expert.

By the way, what type of muffler did you get them to put on? I highly recommend the flowmaster 50 series. Awesome sound and better air flow!
_________________
'94 Grand 5.2L
2" budget boost
31" mud kings
Flowmaster 50
Rusty's air tube
Rusty's steering stabilizer
AEM throttle body spacer
120 amp alternator upgrade
Rusty's Tie Rod Conversion
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Stevo02TJ
Member


Joined: 02 Jan 2005
Location: Waynesboro and Harrisonburg, Virginia

PostPosted: Mon Dec 05, 2005 10:19 am    Post subject: Reply with quote

Slap a 40 Series on that 5.9L beast! rofl
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nixt
Member


Joined: 17 Aug 2005
Location: Atlanta/Athens, Georgia

PostPosted: Mon Dec 05, 2005 3:00 pm    Post subject: Full Throttle Death Reply with quote

It is funny that you both brought that up. Because today I priced both a 40 and a 50 series. After being talked into the 40 series at the shop I went to first, I decided to find out exactly what I was getting. I called Flowmaster and told the guy if I was getting a new muffler, I may as well get a little torque while I was at it. But the guy at flowmaster told me the two chamber 40 series would have that boy-racer sound and on the highway I probably couldn't hear my radio. He recommended the 3 chamber 50 series SUV/Perf. 2.50" C/O # 52557. When I called the initial shop I talked to; they wanted $200.00 for the 50 series installed vs $139.99 for the 40. So I called around and I found a shop that is getting me the 50 series for $130.00 plus tax and installed. It should be in tomorrow. To be honest, I don't care about any extra sound or power, I just want to clear up the trouble I'm having when I stab the accelerator to the floor.
nixt
_________________
1998 ZJ 5.9 Limited W/242 swap
JKS disconnects & Garmin GPS
Heavy duty OME Suspension kit
with 2" coil spacers for 3.5-3.75 total lift
235/85R16 Goodyear MTR's Measure a true 32"

Life has No Value,
But Death Has Its Price.
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Stevo02TJ
Member


Joined: 02 Jan 2005
Location: Waynesboro and Harrisonburg, Virginia

PostPosted: Mon Dec 05, 2005 3:34 pm    Post subject: Reply with quote

I'm thinking about a 40 series on the TJ....I don't know how it will sound. I hear the 4.0L doesn't sound very good with the loud throaty mufflers like the 40 series.

The 50 series is a little quieter and doesn't have quite the drone of the 40 series either. thumbs
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viper24242
Member


Joined: 08 Jul 2005
Location: Harrisonburg, VA

PostPosted: Mon Dec 05, 2005 5:26 pm    Post subject: Reply with quote

my buddy has a 40 series on his '92 XJ high output. It dosen't sound bad at all. Definantly not as throaty as my 5.2 but it sounds good and we can carry on a conversation without yelling.
_________________
'94 Grand 5.2L
2" budget boost
31" mud kings
Flowmaster 50
Rusty's air tube
Rusty's steering stabilizer
AEM throttle body spacer
120 amp alternator upgrade
Rusty's Tie Rod Conversion
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View user's profile Send private message Send e-mail
Stevo02TJ
Member


Joined: 02 Jan 2005
Location: Waynesboro and Harrisonburg, Virginia

PostPosted: Mon Dec 05, 2005 9:34 pm    Post subject: Reply with quote

viper24242 wrote:
...we can carry on a conversation without yelling.


Damn. I want to make people have to scream to battle the sound of the muffler...I miss my mustang Sad lol.
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viper24242
Member


Joined: 08 Jul 2005
Location: Harrisonburg, VA

PostPosted: Tue Dec 06, 2005 5:24 am    Post subject: Reply with quote

You could just take everything off from, oh say, the headers back! Wink
_________________
'94 Grand 5.2L
2" budget boost
31" mud kings
Flowmaster 50
Rusty's air tube
Rusty's steering stabilizer
AEM throttle body spacer
120 amp alternator upgrade
Rusty's Tie Rod Conversion
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swamp boy
Cherokee Muderator
Cherokee Muderator


Joined: 01 Jan 2004
Location: New Orleans LA.

PostPosted: Tue Dec 06, 2005 5:29 pm    Post subject: Reply with quote

That should do it... rofl
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BONE STOCK
Unless you include the sawzall work..

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Stevo02TJ
Member


Joined: 02 Jan 2005
Location: Waynesboro and Harrisonburg, Virginia

PostPosted: Tue Dec 06, 2005 6:36 pm    Post subject: Reply with quote

I have a friend who is obsessed with his Integra. He bought an exhaust cut-out and now doesn't want to install it. That might make for a loud addition to the Jeep. Mr. Green ...as long as everything matches up. lol.
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