Question about 1991 Lexus ES 250

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I have a 1991 lexus that needs a radiator. Is it complicated and expensive to replace a radiator in a lexus?

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Not too complicated, removing the fans is the hardest part. Try an aftermarket site like

Posted on Mar 04, 2009


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Where do you find the thermostat for the radiator on a 1991 lexus es 250?

Hi, Most of the time you can follow the UPPER radiator hose to the engine and there will be the thermostat housing. On Reverse Flow cooling systems you follow the LOWER radiator hose. All the thermostat does is trap coolant in the engine until it reaches a certain temperature, then opens to the radiator to be cooled. Don't forget to bleed the air from the highest place in the cooling system. Sometimes that's the reservoir, but look for a small plug high on engine. Good luck

May 10, 2014 | 1991 Lexus ES 250

1 Answer

Change fuel filter

It is simple and complicated at the same time; do not do it by yourself since you may brake the fuel line and it will need to be replaced entirely. My advice is, go to the dealer, it pays to have peace in mind

Apr 03, 2014 | 1991 Lexus LS 400

1 Answer

I cannot find the thermostat on my 1991 lexus es 250. Any info would help.

the thermostat is usually in the housing where the top radiator hose connects onto the engine.....chers.

Sep 08, 2011 | 1991 Lexus ES 250

1 Answer

I have a 1998 Lexus LS 400 with 138,000 miles. I've had it since 2008 with 85,000 miles with no issues until now. Last week I replaced the power steering pump(also high & low pressure hoses), wheel...

I would either go to a shop or buy a Infrared Thermometer and check the temp of the radiator and the upper radiator housing temp, that's a nice car and expensive to repair, but to blow the engine it would be worth nothing

Jul 21, 2011 | 1991 Lexus LS 400

1 Answer

1991 lexus es250 installed new radiator and themostat and car still over heats could it be as simple as replacing the radiator cap ?

YES!! if the cap is faulty the coolant boils out and wham! the coolant boils and air-locks the water pump.

Jun 06, 2011 | 1991 Lexus ES 250

2 Answers

My lexus ls400 1991 the two electri fan all time is on

Either the temperature sensor on the radiator, or the relay is bad.
Pull a wire off the temperature sensor on the radiator.
If it stops the fans, then the sensor is bad and the relay ok.

Jul 19, 2010 | 1991 Lexus LS 400

1 Answer

My lexus ls400 1991 the fan all time is on.

your car have 3 fans, 1 front of engine that always work ,and 2 electric in front of radiator , only works when air cond is on and temp high

Jul 07, 2010 | 1991 Lexus LS 400

1 Answer

How do i get to bleed my radiator, lexus ls400

you can do it by running engine with radiator cap off until all air is out, some cars require front end to be lifted to make radiator higher then the engine so air can flow up to the top.

Apr 26, 2010 | 1991 Lexus LS 400

1 Answer

1uz timing belt install

This is a very complicated process (involves removing radiator, etc.) and should NOT be attempted by the amateur. Re-assembly is also tricky and could result in your timing being thrown off and a dead car.

Bite the bullet and get it done.

May 29, 2009 | 1991 Lexus LS 400

1 Answer

Blown Head gasket/Affordable repair?

The average sale price for a 91 Lexus in the US, is $3900.00. Used radiator would be around $200.00. Machine shop to machine the head (highly recommended) $500.00 to $1000.00. Gaskets and hoses another $200.00. I don’t know how much you have into it, but I hope this helps your decision.

Jul 12, 2008 | 1991 Lexus ES 250

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