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Another problem

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viper24242
Member


Joined: 08 Jul 2005
Location: Harrisonburg, VA

PostPosted: Sun Sep 10, 2006 7:23 pm    Post subject: Another problem Reply with quote

94 zj 5.2L v-8 100,000miles, 2in bb, 31s. It has developed a problem much like what it was doing when the catalytic converter went bad. When it shifts down after I take my foot off the gas the rpms drop real low and it almost stalls. The only thing that is wierd is that it only does it after it warms up. I would call it the cat but I just replaced a year or two ago. Anybody got any suggestions on what it could be?
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swamp boy
Cherokee Muderator
Cherokee Muderator


Joined: 01 Jan 2004
Location: New Orleans LA.

PostPosted: Mon Sep 11, 2006 8:15 pm    Post subject: Reply with quote

Air charge temp sensor?????? Its worth a try..

Check your TPS while you are at it..
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Unless you include the sawzall work..

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viper24242
Member


Joined: 08 Jul 2005
Location: Harrisonburg, VA

PostPosted: Mon Sep 11, 2006 8:30 pm    Post subject: Reply with quote

Thanks for the info. The thing that gets me is that after it warms up it has the same symptoms as a blocked exhaust. But like I said the cat is new. I think this weekend I am going to try the tps, and air charge sensor. I am also going to try and replace the oil pump, my oil pressure seems to be a bit on the high side, around 70psi if I remember correctly, it fluctuates a lot though. I can't seem to find any place to get the parts online to check the price (I will probably buy local though). Any tips or tricks on how to get this all installed would be awesome.

Thanks for the much needed help swampy!!!
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1fox2go
Member


Joined: 01 Dec 2004
Location: Fishersville, Virginia

PostPosted: Tue Sep 12, 2006 10:45 am    Post subject: Reply with quote

ewww oil pump...I'd try to drop the pan with it in the vehicle, having a hydrolic lift would be sweet
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96 Cherokee 7.5 inch TnT long arm Locked F/R, D44 rear, 4.56s, 35x12.50 Muds/36x12.50 TSLs
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viper24242
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Joined: 08 Jul 2005
Location: Harrisonburg, VA

PostPosted: Tue Sep 12, 2006 11:45 am    Post subject: Reply with quote

Yeah, its been a while since I have been under there but I am a little concerned about having enough space to get the pan out without having to mess with the exhaust. That project might wait a little since I'm thinking about getting a trans temp guage and an oil temp gauge so I can just do it all at the same time. College student with a college job isn't a way to get rich fast.
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1fox2go
Member


Joined: 01 Dec 2004
Location: Fishersville, Virginia

PostPosted: Tue Sep 12, 2006 6:06 pm    Post subject: Reply with quote

tranny temp guage was about an hour project, most of the time was finding wires to tap into for power and lights and that stuff,

i havent looked under a v8 grand to see if the pan can be dropped so im not real sure, i know that the lift will help you out since it pushed the axle down
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96 Cherokee 7.5 inch TnT long arm Locked F/R, D44 rear, 4.56s, 35x12.50 Muds/36x12.50 TSLs
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RussellRowell
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Joined: 09 Feb 2006
Location: Jacksonville Florida

PostPosted: Tue Sep 12, 2006 7:58 pm    Post subject: Reply with quote

One afternoon, after weeks of getting everything I needed, I decided to change my rear main seal. Went over the book a dozen times to make sure I had it down. Dropped everything the book said. Cross member, exhaust, starter. A lot of work! Well to make it short, I could not get the oil pan off to save my life. I went as far as removing the motor mounts and jacking the engine up and still no luck. Even had the axle down as far as it could go. I think if I could have removed one of the steering linkages, I could of removed it. I'm not saying it can't be done because I was unsuccessful. I'm just saying," be prepared".

I was up till 3 am freezing my gonads off putting all that back together. Can you imagine my frustration of failure after going through all that? Plus I had to be at work the next day. Hope my experience saves you some time and trouble.
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1994 w327k
Cold Air K&N / Taurus Elec Fan / O Yellow Top
Dino Max Turbo / Hi Flo Cat / Poly Bush Kit
NP249 / 5.2 / MB Motoring Rims/ 1500 watts
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viper24242
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Joined: 08 Jul 2005
Location: Harrisonburg, VA

PostPosted: Tue Sep 12, 2006 8:33 pm    Post subject: Reply with quote

Thanks for the warning. I always end up spending more time on something because my tools suck... And operator error a lot. We'll see how it goes Rolling Eyes
_________________
'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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1fox2go
Member


Joined: 01 Dec 2004
Location: Fishersville, Virginia

PostPosted: Tue Sep 12, 2006 8:40 pm    Post subject: Reply with quote

did you have a hydrolic lift? that takes the load off the front axle allowing it to fall a couple of precious inches
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96 Cherokee 7.5 inch TnT long arm Locked F/R, D44 rear, 4.56s, 35x12.50 Muds/36x12.50 TSLs
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viper24242
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Joined: 08 Jul 2005
Location: Harrisonburg, VA

PostPosted: Tue Sep 12, 2006 9:00 pm    Post subject: Reply with quote

I wish I had one, I could always jack up the axle, put some jack stands on the frame and then lower the axle. Thats how I got enough room to put my lift spacers in. I tell you, having that lift and bigger tires really makes changing the oil a breeze. I can change my oil faster than any jiffy lube retard can.
_________________
'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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RussellRowell
Member


Joined: 09 Feb 2006
Location: Jacksonville Florida

PostPosted: Tue Sep 12, 2006 9:12 pm    Post subject: Reply with quote

No I didn't have a lift but I did what viper said above. I had the axle completely lowered
_________________
1994 w327k
Cold Air K&N / Taurus Elec Fan / O Yellow Top
Dino Max Turbo / Hi Flo Cat / Poly Bush Kit
NP249 / 5.2 / MB Motoring Rims/ 1500 watts
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viper24242
Member


Joined: 08 Jul 2005
Location: Harrisonburg, VA

PostPosted: Wed Sep 13, 2006 9:50 am    Post subject: Reply with quote

Well, over the course of the past two days I haven't noticed even a hiccup out of my car. So I might hold off on digging around in the engine for a little while. Strange though, there have been a couple times with my jeep that if I ignore something long enough it goes away, I know its not good policy but it sure beats spending money.
_________________
'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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1fox2go
Member


Joined: 01 Dec 2004
Location: Fishersville, Virginia

PostPosted: Wed Sep 13, 2006 12:21 pm    Post subject: Reply with quote

it could be the crank sensor too by the way, i heard that if they pick up some dirt or a sliver of metal they can make the engine run like poop
_________________
96 Cherokee 7.5 inch TnT long arm Locked F/R, D44 rear, 4.56s, 35x12.50 Muds/36x12.50 TSLs
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viper24242
Member


Joined: 08 Jul 2005
Location: Harrisonburg, VA

PostPosted: Wed Sep 13, 2006 1:30 pm    Post subject: Reply with quote

Yeah, I will probably take a look around this weekend and see whats up, just to be on the safe side. Does anyone here wash there engines? Mines pretty muddy but I'm worried aobut screwing up some sensors if I take a hose to it.
_________________
'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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1fox2go
Member


Joined: 01 Dec 2004
Location: Fishersville, Virginia

PostPosted: Wed Sep 13, 2006 6:31 pm    Post subject: Reply with quote

hose that mother down, i spray purple power all over it let it soak for about 20 mins then rinse really good
_________________
96 Cherokee 7.5 inch TnT long arm Locked F/R, D44 rear, 4.56s, 35x12.50 Muds/36x12.50 TSLs
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