Question about 1994 Jeep Grand Cherokee

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Overheating Jeep!! I recently replaced my radiator and water pump and the hoses on my 1994 Jeep Grand Cherokee (4WD, 5.2L engine), but it's still over heating! I'm not sure what else to do... help!

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  • hroberts1987 May 10, 2009

    ummm... i'm not sure if my boyfriend did that when he changed those, i'll have to ask him... and if not try what you suggested =)

    he did say something that he thinks a head gasket could be blown, but this poor jeep is going downhill fast... starter and altenator are going bad now, the muffler just fell off and now the back door won't open anymore,,, plus when he was changing the water pump he busted the power steering fluid open... so no more power steering now =(


  • JUGHED88 May 14, 2009

    OVERHEATING

  • stallard_c1 May 17, 2009

    i have a 1994 grand cherokee with a 5.2L and is doing the same thing ive replaced everything that i can that has to do with the cooling system like the water pump,raidiator,thermostat,hoses,heater core, someone was saying the timing but the timing is computer controled or the catalidic converter but its bran new and also air in the system but i did that too i have no clue what it is

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Did u properly bleed the air out of the cooling system? if u are not sure raise the front of the jeep as high as u can with a floor jack, fill the coolant recovery bottle all the way up with 50/50 coolant mix and run the engine until it gets hot, then shut it down and run cold water over the radiator core, this will cause the air to bleed out and the coolant in the recovery tank to be sucked in, watch the level in the recovery while u do this, don't let it run dry. If this doesn't cure the problem you have other problems like a poss blown head gasket.

Posted on May 10, 2009

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I had this same problem and found out it was relatively simple. The fan shroud had shifted and wedged the fan so that the fan wasn't coming on. Check that out, hope it helps.

Posted on Aug 07, 2009

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In the steering fluid.., there is a thing on the stick that has a c and an h keep it on the c ,., maybe that would work

Posted on Jul 31, 2009

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I'm trying to locate the thermostat on my 2000 jeep grand cherokee


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  2. Remove lower radiator hose clamp and lower radiator hose at thermostat housing.
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How to replace a fuel pump on a 1994 jeep grand cherokee?


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(see Figure 6)
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25b04d0.jpg

Fig. 6: Water pump mounting bolt locations
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To install:
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  2. Guide the water pump and new gasket into position while connecting the bypass hose to the pump. Tighten the water pump bolts to 30 ft. lbs. (40 Nm).
  3. Install the bypass hose clamp.
  4. Spin the water pump to ensure the pump impeller does not rub against the timing chain cover.
  5. Coat a new O-ring with coolant and install it to the heater hose coolant return tube.
  6. Install the coolant return tube to the engine. Ensure the slot in the tube bracket is bottomed to the mounting bolt. This will properly position the return tube.
  7. Connect the radiator hose to the water pump.
  8. Connect the heater hose and clamp to the return tube.
  9. Install the water pump pulley and tighten the bolts to 20 ft. lbs. (27 Nm).
  10. Install the accessory drive belt.
  11. Install the cooling fan and shroud.
  12. Fill the cooling system.
  13. Connect the negative battery cable.
  14. Start the engine and check for leaks.

Other details can find in your repair manual ZJ-Secc-7-Cooling-System

Hope thats help.

May 04, 2010 | 1994 Jeep Grand Cherokee

1 Answer

Over heating, engine only, just had radiator replaced


Thermostat, is where top radiator hose connects / it could be that it is air locked /also could be water pump after removing the thermostat you should be able to see if water pump is circulating. if it was a used radiator ? it could be just as bad as the one you just changed / Have it flow tested .gallons Pier. minutes. also mack sure no kinks in hose./ let us know .Thank You.

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1. Remove negative battery cable
2. Open radiator valve - drain cooling system
3. Remove cooling fan and shroud
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10. Loosen the clamp on the bypass hose.
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Hope this helps

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Jun 14, 2008 | 1994 Jeep Grand Cherokee

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