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Jeep Wrangler Maintenance and Repair Questions (1997 - 2006)

1670 messages,  Last post on Nov 30, 2009 at 8:17 PM

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#1661 of 1670 Re: Accelerator Surge [rebecca1880] by kevin213 Nov 25, 2009 (7:14 am)
Replying to: rebecca1880 (Oct 06, 2006 4:59 pm) Your description of your surge problem is exactly what is happening to my Jeep Rubicon 2005. Please let me know if you figure it out. Thanks.
#1662 of 1670 97 Wrangler Heater Prtoblem by shaka04 Nov 27, 2009 (5:29 pm)
Help! I have luke warm heat with the blower and heater control wide open. Temperture gauge shows normal. The top hose from the heater core to the water pump is hot; the other hose is only warm.I suspicion the heater core is bad but there could be a valve in the line blocking the coolant to the heater. I flushed the system and everything was very clean. Before I jump in to replacing the heater core does anyone have any suggestions? Appreciate your input. Replies to this message: nworbekim (Nov 28, 2009 6:39 am) mac24 (Nov 28, 2009 6:53 am) shaka04 (Nov 29, 2009 11:12 am) mac24 (Nov 30, 2009 6:15 am) and 1 more... gayjeepboy (Nov 28, 2009 7:04 am)
#1663 of 1670 Re: Modified bumper [erickpl] by roadburner Nov 27, 2009 (8:51 pm)
Replying to: erickpl (Nov 25, 2009 6:06 am) Great write-up, and good work too!
#1664 of 1670 Re: 97 Wrangler Heater Prtoblem [shaka04] by nworbekim Nov 28, 2009 (6:39 am)
Replying to: shaka04 (Nov 27, 2009 5:29 pm) i'm by far, NO EXPERT... i'm known in my circle as severely mechanically challenged, but i've a few thoughts on your problem...   i've not had the problem on my '98 wrangler, but a couple of the vehicles i owned before were samurai's and there was a valve under the hood on the firewall that opened and closed via a cable connected to the inside control switch... this valved controlled the flow of fluid through the heater core, one way and it went thru, the other way, it bypassed it... i'd guess there is one on the wrangler, somewhere, but i've not looked for it...   all i had to do was WD40 it and work it by hand a few times, it got corroded up and stuck during the summer when it wasn't used, so i made it a point to move it back and forth once in a while, from then on...   here's a wrangler parts diagram that might help...   http://www.jeep4x4center.com/air-conditioning-heating/wrangler-tj.htm   i figure since the other controls in the wrangler work with vacuum, this probably does too, somehow...   it occurred to me... my cruise wasn't working, i rarely use it, but one of my routes allowed me to lock it down at freeway speeds once a week. i first began to notice a significant drop in AC fan speed when i accelerated or climbed a hill, then, the cruise stopped working as well, it would hold the speed for a few seconds then gradually slow down, reminded me of air going out of a baloon...   i was puzzled for several days then it dawned on me that the two had a common link... THE VACUUM!!! i searched around and found a cracked vacuum hose right beside the brake fluid reservoir... in a hurry, i wrapped electrical tape around it several times above and below the crack and over the crack, and its been a looonggg time now and i've no problem...   that could be a solution... i'm thinking water directional valve, vacuum controlled via controls on the dash, valve not working completely? maybe vacuum not strong enuff to open valve all the way...   there're several things i'd look at before i tore out the heater core... i've not done it on a wrangler, but i have on a couple of other vehicles, and it wasn't a picnic, but thats what i like about the wrangler, it appears to me, from what little i've done, to be fairly easy to get to stuff...
#1665 of 1670 Re: 97 Wrangler Heater Prtoblem [shaka04] by mac24 Nov 28, 2009 (6:53 am)
Replying to: shaka04 (Nov 27, 2009 5:29 pm) There's no valve in the system, coolant circulates through the heater core all the time. Heat is either excluded from, or directed to, the interior by a blend door in the HVAC housing.   If the flow hose to the heater is hot and the return hose is much cooler, then it's highly likely that your twelve year old core has become seriously restricted.   Re the earlier reply, the '97 uses mechanical controls for the HVAC while later model years do use vacuum. Replies to this message: shaka04 (Nov 29, 2009 11:12 am) mac24 (Nov 30, 2009 6:15 am) erickpl (Nov 30, 2009 7:23 am)
#1666 of 1670 Re: 97 Wrangler Heater Prtoblem [shaka04] by gayjeepboy Nov 28, 2009 (7:04 am)
Replying to: shaka04 (Nov 27, 2009 5:29 pm) I had a 97 wrangler and I think the problem may be the clip that attaches the blend door actuator to the panel slider control. I dont remember exactly what the part looks like but as I recall it was a common problem with the 97-98 wranglers. I think i fixed it with a small Tyrap nylon cable tie. If you move the slider and feel little resistance with the control this is probably the problem. In 99 they redesigned the controls to the rotary type. My 05 wrangler has never had a problem with the "new" style controller Hope this helps.
#1667 of 1670 Re: 97 Wrangler Heater Prtoblem [mac24] by shaka04 Nov 29, 2009 (11:12 am)
Replying to: mac24 (Nov 28, 2009 6:53 am) You were correct; the core was plugged. Good news is spliced into heater hose with garden hos adapter and flushed the gook out. Heater works great. Thanks for the tip...saved me a lot of money. Replies to this message: mac24 (Nov 30, 2009 6:15 am) erickpl (Nov 30, 2009 7:23 am)
#1668 of 1670 Re: 97 Wrangler Heater Prtoblem [shaka04] by mac24 Nov 30, 2009 (6:15 am)
Replying to: shaka04 (Nov 29, 2009 11:12 am) Always nice to hear a positive result! Replies to this message: erickpl (Nov 30, 2009 7:23 am)
#1669 of 1670 Re: 97 Wrangler Heater Prtoblem [mac24] by erickpl Nov 30, 2009 (7:23 am)
Replying to: mac24 (Nov 30, 2009 6:15 am) X2. I did that as well to fix mine, and subsequently found out my water pump was bad. Replaced it once I saw coolant pouring out of it. Also noticed the pulley was darn hard to turn by hand. New one spun easily. Engine actually strains less now. And my heater ROCKS!   -Paul
#1670 of 1670 dead gauges sahara 1999 by sbp0102 Nov 30, 2009 (8:17 pm)
Hi ! today all my gauges went dead, but the jeep is starting and run fine. The airbag light is on too. Tried swopping cluster fuses with airbag fuses , no luck. Even the RPM/speed are zero! Any good suggestions?? Another thing is it normal that the oil pressure gauge goes up / down with the RPM?

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