Question about 1995 Acura Legend

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95 acura legend doesn't overheat on freeway, but does on surface streets. I had the radiotor flushed and changed the thermostat.

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First off, while the car is cold, remove the radiator cap, and start the car. Let it warm up, and make sure the fan kicks on, and make sure the thermostat opens up. There is no danger in doing this. The cap is off, so no pressure can build in the radiator or burst out. That only happens when you remove the cap when the car is hot.You will see the coolant flow throught the radiator if the stat opens. If the fan doesn't come on, I would say you need a fan. If the fan comes on, and the coolant DOES NOT flow, you may need a water pump, or by chance, your new thermostat is bad. Also, without flow, that could indicate the radiator is bad. Flushes are good, but not always right. If you wait again til the car is cold, take the cap off the radiator, and get a bucket to drain the coolant in by taking the bottom hose off. Stick a water hose in the top and make sure water comes out of your bottom port. Hope it all goes well.

Posted on Mar 03, 2009


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95 acura legend, if I install a air separator tank thru the bleeder valve to relieve the trap air ,will it affect the thermostat operation?

Let me guess. Some mechanic told you to do this to your Legend? :-)
Do not do this (if it's even possible)

The simplest thing you need to do for the Acura Legend is to bleed the coolant system to get rid of the trapped air.

Feb 12, 2017 | 1995 Acura Legend

2 Answers

95 Acura legend LS,problem with engine overheat. changed radiator,thermostat,& most of the coolant hoses.however,the trapped air in the coolant has progressed,I was told to put a AST tank.Any thought?

Most modern engines have a degassing facility and sometimes those small ports and hoses block with silt and the small amounts of gas the head gasket has failed to seal will build up in the cooling system, displace coolant and perhaps disrupt the proper operation of the thermostat. Degassing is required to allow the gas to escape harmlessly to the space above the coolant where it eventually vents.

When a failing head gasket allows too much gas to pass into the cooling system even the degassing won't be sufficient and the thermostat operation is likely to be affected causing overheating and excess coolant displacement.

My thought in response to you mentioning trapped "air".

Feb 12, 2017 | Acura Cars & Trucks

1 Answer

The car overheats with new radiator and when I turn the heater and air on the needle comes back down to50% or normal. The overflow container is also cracked. 1994 Acura Legend

Change the thermostat and bleed the air out of the cooling system,make sure the cooling fans come on,and go off by themselves,with the defrost,and the ac off.

Jan 29, 2010 | 1994 Acura Legend

1 Answer

How do change a Thermostat for a 91 Acura Legend

  1. Drain the cooling system and remove the lower radiator hose from the thermostat housing.
  2. Remove the thermostat housing bolts, the housing and the thermostat.
  3. Clean the gasket mounting surfaces.
  4. To install, use new gaskets and reverse the removal procedures; install the thermostat's spring end toward the engine. Torque the housing bolts to 9 ft. lbs. (12 Nm).
  5. Refill and bleed the cooling system.

Jan 19, 2010 | 1991 Acura Legend

4 Answers

My 1994 Acura Legend keeps running hot. Gauge

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

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


Excavate air pocket in coolant system / check for head gasket leak

This test will kill two birds with one stone.




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
5-12 minute mark or after high idle you should see less bubbles.

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.

If you see larger bubbles surfacing after 15 minutes then should do a hydrocarbon (HC) dye test to test for potential head gasket leak.

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!

Nov 18, 2009 | 1994 Acura Legend

1 Answer

Where is the thermostat located in a 1990 acura legend? The engine overheats when it is running down the road and cools when the car is stopped. can anyone help?

Follow the upper radiator hose and where it is attached to engine block, that is where the thermostat housing is. SHould have 3 bolts on it.

Aug 05, 2009 | 1990 Acura Legend

1 Answer

I have a 95 acura legend 3.2 with overheat there a history of this and is there a "tipical" FIX for it?

Check you engine coolant and if it is low fill it up. if it is full you may need to replace the thermostat.

Jun 19, 2009 | 1996 Acura TL Series

2 Answers

1992 Acura Legend

I had the same problem, replaced thermostat and still didn't fix it. What did fix it was simply a thourough coolant system flush and fill. It fixed the engine temp problem. They said there was air in the coolant lines. It also fixed a idle rev in cold conditions.

Jul 07, 2008 | 1992 Acura Legend

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