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Jeep Wrangler Maintenance and Repair Questions (1997 - 2006)

1412 messages,  Last post on Dec 04, 2008 at 5:04 AM

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What is this discussion about? Jeep Wrangler, SUV


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#1282 of 1412
Re: 2005 jeep wrangler problems [exaltation] by erickpl
Jun 18, 2008 (4:39 am)
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Replying to: exaltation (Jun 17, 2008 5:47 pm)

Mud + water usually means your Throttle position Sensor got uh... messed up.
 
$53.00 or so at autozone and 10 minutes later you'll be on the road. Autozone or any good auto part store should be able to read the code and have it tell you what the issue is.
 
I messed mine up wheeling in mud. Died while driving 55mph on the highway back to the hotel --- WHILE CROSSING A BRIDGE! That was fun.
 
It could be the distributor too, so it would be worth a look see by opening it up and checking the points and such to ensure they are dry. If not, shoot some WD40 in there (after all it IS for water displacement) and try again. But if you are throwing codes, I'm willing to bet your TPS is shot.
#1283 of 1412
Re: '97 jeep 4.0l popping [jeepguy48] by erickpl
Jun 18, 2008 (4:42 am)
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Replying to: jeepguy48 (Jun 17, 2008 7:11 pm)

What kind of gas you running?
 
I'd suggest some decent fuel injector cleaner into the gas tank and perhaps fill up at Chevron (or buy some Techron) just to help clean things out.
 
I'd also consider checking the plugs/wires to ensure they are working fine. Check the coloration on the plugs to determine if the engine is running lean or rich. I'd also check the air filter to ensure it is clean.
 
It SOUNDS to me like either bad gas or a few minor maintenance issues may be the culprit. Mine has never had that noise so I'm not too sure where to point ya?
 
Mac?????
 
-Paul
#1284 of 1412
Re: '97 jeep 4.0l popping [erickpl] by jeepguy48
Jun 18, 2008 (6:08 pm)
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Replying to: erickpl (Jun 18, 2008 4:42 am)

I use an injector cleaner on a regular bases. i have tried new cap, rotor, plugs,coil, cam position sensor, crank position sensor, o2 sensors, throttle position sensor, manifold air temp sensor, coolant temp sensor. the next thing i'm thinking of doing is the manifold absolute pressure sensor, computer, or timing chain. I have been chasing this for over a year and getting determined to figure this out even if it kills me. Was hoping someone has had a similar problem and maybe get some help. thanks
#1285 of 1412
Re: '97 jeep 4.0l popping [jeepguy48] by erickpl
Jun 19, 2008 (4:57 am)
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Replying to: jeepguy48 (Jun 18, 2008 6:08 pm)

Not sure if this will help, but did you see if you have a broken/cracked manifold?
 
-Paul
#1286 of 1412
Re: '97 jeep 4.0l popping [erickpl] by jeepguy48
Jun 19, 2008 (3:20 pm)
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Replying to: erickpl (Jun 19, 2008 4:57 am)

intake or exhaust
#1287 of 1412
stuck in the mud by jeepboat
Jun 24, 2008 (8:28 pm)
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I recently dove my 2001 Jeep Wrangler into a mud pit and got it stuck. I didnt know at the time that the dealership or the previous owners had pulled the drain plugs and when I got stuck I flooded the interior of the jeep. Im sure im not the first person to do this so any cleaning tips anyone might give me would be greatly appreciated.
 
I also had to be pulled out and when I came out I couldnt get the clutch to engage. After a 4 mile tow by my buddys jeep out of the woods I had it Towed to my mechanic. Thinking I had destroyed the clutch. My mechanic "also a jeep enthusiast" told me that I had somehow jammed enough mud into the slave cylinder to prevent it from engageing the clutch. He cleaned it and the jeep worked again. However my clutch still seems slugish and my check guages light keeps popping on. I plan to due a full fluid replacement oil, transmission fluid, radiator flush. Any advise on either problem would also be appreciated. P.S. this is a 2001 4 cylinder 5 speed. also any advise on how to prevent this from happening again.
#1288 of 1412
Re: stuck in the mud [jeepboat] by erickpl
Jun 25, 2008 (5:05 am)
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Replying to: jeepboat (Jun 24, 2008 8:28 pm)

Best way to avoid it is to not go in that deep of mud.
 
If you do, you may want to extend your breather lines for differentials, transmission, and transfer case.
 
Also, do NOT shift while in that deep of mud. Disengaging the clutch lets the junk in, especially with a stock breather tube.
 
-Paul
#1289 of 1412
'97 jeep 4.0l fuel pump pressure by jeepguy48
Jun 29, 2008 (11:56 am)
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does any know what the fuel pressure should be for a 4.0L jeep running wide open throttle?
#1290 of 1412
Re: '97 jeep 4.0l fuel pump pressure [jeepguy48] by mac24
Jun 30, 2008 (5:34 am)
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Replying to: jeepguy48 (Jun 29, 2008 11:56 am)

does any know what the fuel pressure should be for a 4.0L jeep running wide open throttle?
 
I do...me...over here...
 
Oh, you wanted the actual figure? Ok, sorry too much coffee.....
 
It should be 49psi +/- 5psi constantly while running or ign on. WOT or idle, it should be the same. The amount of fuel getting to the pistons is controlled by the injectors, which in turn are controlled by the PCM.
 
If your pressure is less it could be a pump, filter, pressure regulator, or fuel line issue. If it's more, then it's the regulator.
 
Now, where are those donuts...........
#1291 of 1412
Re: '97 jeep 4.0l fuel pump pressure [mac24] by jeepguy48
Jun 30, 2008 (3:12 pm)
Reply

Replying to: mac24 (Jun 30, 2008 5:34 am)

thanks mine is dropping to about 30psi above 4000rpm at wot thanks again for the info looks like its time for a fuel pump.

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