Question about 1998 Jeep Cherokee

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Engine and hood extremly hot new thermostat installed and temp gauge working properly why so hot?

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Make sure you're using proper amount of coolant in the water. You could have dirty fins or something blocking the front of the rad preventing it from cooling enough or might be rad clogging up. If gauge goes over half way then I'd worry. I'd remove rad and use rad cleaner or get it cleaned professionally.

Posted on Jul 01, 2009

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I have a 97 cherokee 4.0 4x4 auto and i had the same problem. I put a lower temp thermostat, flushed the system installed a aux transmission cooler, and changed the fan clutch. What I found out was the nature of this engine is to run at 210*F if you put a low temp thermostat and are cuiseing the freeway it will cool down but once your slow down again it warms right back up. If your worried about the hot hood most of the under hood heat comes from the exhaust you could buy a cowl hood or do what I did and wrap the headers/manifold in hi temp insulation. That will also inprove your performance since the exhaust will not heat up the intake manifold and your engine will get cooler air also you can put some underhood insulation under the hood to reflect the heat away from your hood and thus allowing you to open your hood with out burning your hand

Posted on Aug 14, 2009

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99 mercury cougar v6 2.5L, temp gauge is reading hot after thermostat change why? is it a air bubble or is it a bad temp. sending unit? any other ideas? please help


May be a defective thermostat or place in the wrong direction. If it's properly installed, might want to check the fan operation which may be producing the overheating.
If fan is good, one way to remove air in the coolant system is to run vehicle while all heaters on. take extra coolant and stop along the way to top off if needed. While driving, keep listening for the fan to begin running when vehicle reaches high temperatures.
If you continue to experience overheating, may want to take to a local known repair shop for further troubleshooting.

Jun 17, 2017 | Cars & Trucks

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Are there problems with the thermostat gauge not show proper temperture readings. 1999 vw jetta 2.0 gauge shows no temp reading. Is it a bad thermostat and needs to be changed. And can you harm the...


If you are not getting a signal to your gauge, your car can still run. You just won't know if your car is overheating until it is too late. A bad thermostat won't keep your gauge from working. The temperature sensor that sends the signal to the gauge will keep it from working.

The thermostat helps your car in extreme weather. It helps your engine warm up in extreme cold so your heater will work sooner. And it helps you car cool itself off in extreme hot weather. As your engine water temp rises, the thermostat will open allowing the water in the radiator (that has been cooling) to flow into the engine block. The water that was in the block will go into the radiator to begin cooling.

In fair weather, you don't need a thermostat.

Oct 09, 2010 | Volkswagen Jetta Cars & Trucks

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1990 honda accord temp gauge above hot limit.


Hi there,

Firstly - DO NOT run engine, when guage reads hot, as this will cause costly damage to head gasket & alloy engine head.

The fact that guage takes 1min to read HOT, would confirm the guage IS working properly.

So, other components which are likely to cause hot readings (in this order) are:

- lack of coolant (or leakage somewhere): is there sufficient green coolant at the correct level? Top up mixture to correct level. Repair any leaks.

- collapsed radiator hose: when engine is cold, start engine, then quickly watch both upper & lower radiator hoses to see if either begins to flex inwards (collapse). Replace if either hose is collapsed.

- bad/incorrect thermostat rating : when replacing thermostats, you must ensure it is of the SAME temp rating (they all differ).

- Incorrect Temp sensor rating: the ratings of this sensor must be within manufacturer's spec's.

- bad waterpump: the engine relies on the waterpump to distribute the coolant throughout the entire system. If waterpump is faulty, coolant will not flow quick enough, causing overheating.

If you still believe all of the above components are OK, then have your cooling system "pressure tested". This test should be done, before looking further at other electrical components.

Cheers,

"if this has helped you in any way, please rate this solution"

Jan 27, 2010 | 1990 Honda Accord

1 Answer

No heat. gauge working. fairly new thermostat. replaced engine, radiator cap.?


I am guessing that the gauge is showing normal operating temp, if so, I am also guessing that the blower motor is pushing air through the ducts.... if so than

were heater hoses reconnected ?
was hot water valve vacuum line reconnected ?
was all air purged from entire cooling system after engine repplaced ?
were heater hoses connected properly to get correct direction of flow ?
are hoses to heater core under hood getting hot ?

is the heater core clogged ?

Oct 17, 2009 | 1997 Mercury Sable

1 Answer

'93 accord ex.is fine while driving, but runs hot when idling


try changing the thermostat or you have a block somewhere try flushing it out with a garden hose

Aug 10, 2009 | 1993 Honda Accord

1 Answer

Jeep Cherokee engine problem


Engines get hot. You could change the oil, and install a lower temp thermostat. If the temp guage is working, then its not overheating

Jul 01, 2009 | 1998 Jeep Cherokee

1 Answer

97 Hyundai Lantra. Temp gauge shows engine very hot


If the replacement thermostat is good, and installed properly, then the temp sensor might be bad. I hate to tell you ($$$$$) but waterpump could be bad (more expensive)

Feb 21, 2009 | 1997 Hyundai Elantra

3 Answers

Tempeture gauge


this is one of three posabilitys or it could be the guage or the wirring to the guage

Oct 19, 2008 | 2001 Oldsmobile Silhouette

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