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1995 Jeep Wrangler #832677 08/27/07 03:49 AM
Joined: Aug 2007
Posts: 1
S
scasper76 Offline OP
Need a Spot
Hi,

I have a 1995 Jeep Wrangler YJ, and when the vehicle is not moving and idling it over heats. It will get up to around 235 degress or so, but only when idling. When the vehicle is in motion it runs at regular temp. I have replaced, the thermostat, water pump, got a new fan, and new radiator. The radiator has been checking at a local shop and they said it is perfect condition. Any ideas on what could be causing this? I also upgraded the thermostat to a "heavy duty" thermostat hoping that would fix the problem, but no luck. Any ideas?

From the Off-Road World
Re: 1995 Jeep Wrangler [Re: scasper76] #832678 08/27/07 04:16 AM
Joined: Oct 2003
Posts: 7,768
BigJim Offline
Web Wheeler
Jeep temp guages are notorious for being more sensitive than other makes.. ALL vehicles get a little hotter while idling. BUT most other gauges are dampened so the gauge doesn't show this small increase in temprature. As long as the coolant STAYS in the vehicle and does not puke out on the street you are OK!
Hotter engines perform better anyway. The condition you have is pretty normal for a Jeep.
Big Jim
<img src="/forums/images/graemlins/pfft.gif" alt="" />


professional bovine relocation specialist
Re: 1995 Jeep Wrangler [Re: scasper76] #832679 08/28/07 12:05 AM
Joined: Sep 2005
Posts: 1,087
BobRowe Offline
Body Damage is Cool
First, off, 235 deg isn't that bad for an idle temp, as long as it doesn't get subsantially higher.

Your Jeep runs cooler when it's in motion because you have good ram air hitting the front of the radiator. But at idle, the cooling system depends on the fan to pull enough air through the radiator to cool it off.

If you have a mechanical (engine-driven) fan with a clutch on it, that's the first thing I would check. When the Jeep gets hot, that fan clutch should engage and the fan should really make a roaring noise. If not, then your fan blades are just coasting and not really pulling air through the radiator. In addition to the roaring sound, when the clutch is engaged and the engine turning about 1000 rpms, you should be able to slip a piece of cardboard in front of the radiator, and it should be difficult to pull the cardboard off if the fan is sucking in the proper amount of air.

Another thing that could affect it is if the fan shroud has been removed sometime in the past during a modification. If the fan shroud is missing, you can guarantee it will overheat at idle.


1977 CJ-7, fiberglass body, AMC 360 w/ headers, DUI ignition, Edelbrock intake and Holley 4150 carb, TF999, Dana 300, 4.56 gears lockers, York air comp, 4" susp lift, 2" body lift, BFG 35" M-T tires, Megashifter, AGR pump & box, REP8000 winch.
Re: 1995 Jeep Wrangler [Re: scasper76] #832680 08/28/07 04:12 AM
Joined: Aug 2007
Posts: 8
Danica Offline
Need a Spot
Scasper. I had the dilemma with my '01 Wrangler. Check the engines thoroughly, if the need for replacement arises, go here and get the best Jeep Wrangler Parts that you need. <img src="/forums/images/graemlins/kewl.gif" alt="" />

Re: 1995 Jeep Wrangler [Re: Danica] #832681 08/28/07 05:20 PM
Joined: Oct 2003
Posts: 7,768
BigJim Offline
Web Wheeler
Somebody please cancel this guys ticket!
Big Jim <img src="/forums/images/graemlins/pfft.gif" alt="" />


professional bovine relocation specialist

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