Last post on Nov 05, 2013 at 12:21 AM
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Jeep Wrangler, Scheduled Maintenance, Steering, Suspension, Tires, SUV
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#826 of 1888 1997 JEEP WRANGLER HESITATES
Mar 27, 2007 (7:03 am)
I've noticed this problem on many sites all across the web. My 1997 Jeep Wrangler IL6, m.t, 4x4; when given gas, hesitates. I ran the codes and replaced MAP sensor, Throttle Position Sensor, Crank Position Sensor. This improved the hesitation but did not eliminate it. I swapped out new plugs, rotor, and cap. (Old plugs had signs that engine was running rich) I checked for intake issues from the filter to intake manifold, all is A-OK. A ran a injector cleaner through the system. I used to get 18-20 mpg, I am now down to 10. Blowing black smoke out of the exhaust. Worried that my new catback and hedman header are gonna get destroyed as I also now get back fire.
Can an 02 sensor be to blame?
Thank you ahead of time. The weather is warming up and looking forward to getting out on the trails.
#827 of 1888 Re: 1997 JEEP WRANGLER HESITATES [domainearth]
Mar 27, 2007 (6:01 pm)
Can an 02 sensor be to blame?
Certainly it could. Have you checked for codes? Sounds like you are running way rich.
#828 of 1888 Re: 1997 JEEP WRANGLER HESITATES [mac24]
Mar 28, 2007 (5:27 am)
thnx, for reply. Yeah, way rich! LoL! If i was looking for 10mpg, I'd be running a Lambo on 33's. That would be a sight!
I ran codes again.
This is what popped up in order.
12* Battery Disconnect / Direct battery input to the PCM was disconnected within the last 50 key-on cycles
24** Throttle Position Sensor Voltage High (or Low); or TPS Voltage Does Not Agree With MAP / Throttle position sensor input above the maximum (or below the minimum) acceptable voltage; or TPS signal does not correlate to MAP sensor
15** No Vehicle Speed Sensor Signal / No vehicle speed sensor signal detected during road load conditions
24** Again! LOL
14** MAP Sensor Voltage Too High (or Too Low); or No 5 Volts To MAP Sensor / MAP sensor input above the maximum (or below the minimum) acceptable voltage; or 5 Volt output to MAP sensor open
13** No Change in MAP From Start to Run / No difference recognized between the engine MAP reading and the barometric (atmospheric) pressure reading from start-up
55* Completion of fault code display on the Check Engine Lamp (MIL)
I did replace both MAP and TPS before I posted original message. So now I guess it's off to a professional!
If anyone has any insight into this please continue post. If I get this resolved, I will post what the mechanics did! Thank you and good Jeeping to all!
well, it's off to a professional
#829 of 1888 98 Wrangler Rear Seat
Mar 29, 2007 (6:29 pm)
I'm having a hard time folding/removing the rear seat of my 98TJ.
Does anyone have any tips?? Thank you for taking the time !
#830 of 1888 Re: 1997 JEEP WRANGLER HESITATES [domainearth]
Mar 29, 2007 (6:59 pm)
I think that the lack of a VSS signal is playing a part here. It sounds like an intermittent VSS problem though, as the engine won't idle if the signal is completely missing. The PCM requires road speed information, which it correlates with engine speed, throttle position, OČ sensor input etc. to determine fueling requirements. Also, VSS data is used when deaccelerating so that the IAC can be used to generate correct MAP conditions. That could be why the PCM is seeing the MAP data as incorrect and is throwing the MAP codes.
#831 of 1888 Re: 98 Wrangler Rear Seat [98blue]
Mar 29, 2007 (7:14 pm)
The seat pivot point is a bar that passes through two brackets with holes in them, the bar being retained with two 'R' clips. To remove the seat you first remove the 'R' clips then slide the seat to one side until the bar comes out of one of the brackets. Slide it the other way to free it from the other bracket, then lift it out. It's easiest to perform the whole operation from the rear.
#832 of 1888 Re: 98 Wrangler Rear Seat [mac24]
Mar 30, 2007 (7:00 am)
Thanks so much for taking the time Mac24! This should help this not so mechanically inclined TJ owner!
#834 of 1888 Jeep Tire Cover
Apr 01, 2007 (3:48 am)
Just ordered a Tire Cover for my Jeep. Do they just slip over the spare without taking the tire off the back or do I have to take the tire off to put it on properly? Come to think of it..if I have to remove the lug nuts to take the tire off I would not be able to put the cover on and put the lug nuts back on...Its early here.
#835 of 1888 Jeep Tire Cover
Apr 01, 2007 (5:11 am)
You failed to specify if the cover is the kind that you push on with your thumbs or if it is the kind that you pound on with a hammer.
Did you just buy one?
They usually come as a set of four, five if you want to cover your spare.
I think they get pretty dirty if you drive on them.