Question about 1994 Acura Legend

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My 1994 acura legend keeps overheating

I replaced the thermostat and checked all the hoses it is loosing a little coolant but not much. my fans wont kick on and my heater blows cold air. when i drive the temp gauge goes from normal to hot and then drops back down.....im stumped!!!!

thanks

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  • Blake Gillespie
    Blake Gillespie Jan 08, 2009

    i switched the relay fuse for the fans and they still didnt turn on and i bleed the cooling system and it still over heats and my heater only blows hot air when i have my rpm's up high and when its idling it blows cold air. i think that it might be my water pump isn't working but i dont no were it is located.

  • Blake Gillespie
    Blake Gillespie Jan 08, 2009

    ya mad mazda ya tried to blled the cooling system and that didnt work and i have only been using water cause my fluids keep dissapearing and i dont have the money to keep spending on coolant

  • wilburwtsn Jan 13, 2009

    i have the same problem over heats go up and down

  • crazybguy200 Feb 16, 2009

    hey there, i have a similar problem. my 94 legend keeps overheating. i replaced the thermostat but the temp gauge reads sumthing diff. the temp needle goes all the way up to the red line and but the therm housing is at 150 F. the therm is suppose to open at 173F. and then the fans suppose to come on.. any suggestions are welcomed..

  • adharris0321 Apr 23, 2009

    My 1994 legend is overheating and blowing out white smoke. A few weeks back i changed the pcv valve and that stopped the smoke. But, now my car is overheating and the white smoke has returned. I changed the thermostat only to find out there wasn't one to replace. And it still is overheating. I bled the system using the bleeder bolt but that didn't help. Also i'm getting different answers as for as the radiator fans are concerned, so i'll ask you. Are the fans suppose to come on only when the air is turned on, or do they come on when needed?

  • ash seder May 11, 2010

    have you bleed the cooling system of air?
    what coolant did you yous? some coolants dont mix very well and block the radiator

  • Anonymous Apr 01, 2014

    My 1996 toyota hiace 2rz is overheating after about an hour of driving then to keep the temp down i have to crank the heater on high Im guessing it has something to do with the thermostat but cannot locate it
    Any help appreciated

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When bleeding the system to get the air out, you may want to turn of the heater to help get all the air out of the system.

Posted on Apr 27, 2009

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Hi there..... there could be a number of things wrong here. 1st, when you refilled the rad and system with coolant, did you purge the system and get the air out? If not this can cause your no heat and no fan problem because you fan switch is probably not submerged in the coolant therefore not getting the proper temp. to turn on the fans. it can also cause the no heat because the coolant isn't circulating properly.

If you purged the system, then you might have a bad fan switch and thats why it's not turning your fans on. The no heat could be a clog in the heater core.

From What you described in your complaint, it sounds like you have air in the system. I would take the rad cap off and let the engine run and warm up. Allow the thermostat to open and let the coolant circulate. This should help it out.

Posted on Jan 02, 2009

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I had the same problem and it got to the point to where the car was barely even drivable. I changed the radiator, thermostat, and water pump but to no avail. Then i finally broke down and decided to change the head gaskets and that did the trick. An easy way to determine whether or not it is a head gasket is to pull your spark plugs out and see if they are wet. If so then you need to replace your head gasket. Hope this helps

Posted on Feb 23, 2009

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You have a blown head gasket. I'm sorry.

Posted on Jan 11, 2015

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4 Answers

I have a overheating problem with my 1993 acura legend and i just replaced the thermostat and the radiator. the fans work fine there is no leak and there is no head gasket problem but it keeps on taking...


How do you know that the head gasket is good? even with a bad thermostat it would not overheat in 3-5 min, a bad fan or relay would not make it overheat so fast , this sounds like a bad waterpump that has a bad impeller that does not circulate the coolant , but would not take coolant , if you are going through coolant and overheating that fast i would say head gasket but if you were not loosing coolant i would say to check the water pump impeller, i have seen them rust away or break,

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Im having isues with my 1994 acura legend over heating


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When the car is completely cool,check the electric fan(s) for smooth rotation.

Clean/check/change the thermo sensor,contact and wire.

===

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This test will kill two birds with one stone.

===

MAKE SURE THE COOLANT SYSTEM and ENGINE IS COLD!

RAN THIS TEST IN A WELL VENTILATED AREA ONLY!

You will spill some coolant during this air pocket purge test.......BE KIND TO THE ENVIRONMENT and ANIMAL please clean up after the test!

===

Put the front end on a pair of ramp or park your car on a VERY STEEP HILL (radiator facing top of the hill) .

Top of the coolant reserve tank

Let it ran for 10-15 minutes.

Monitor for air pockets escaping from coolant reserve tank.

Small amount of bubbles is OK at 1-5 minute mark

After the thermostat open up (after 195 F warm up) at
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If you do not see any in rush of bubbles then your thermostat may be partially stuck or rusted badly inside the thermostat hosing.

Give the thermostat host few gentle taps.

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Let engine cold down and top off coolant reserve tank.

Start monitor for coolant lost

===

A coolant flush is require every 2 years or 24,000 miles.

I recommend the thermostat that has a relief pop-let to reduce the change of burst radiator and coolant hoses.

Make sure you get a new thermostat gasket,black RTV and fresh coolant for the job.

===
Please post more information by clicking the comment link on the top right corner.

DON'T FORGET to RATE ME if my tip is helpful to you!

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