A/C help needed!!!

lesha30 · 07-12-2004, 05:27 PM

Hey,

I got another problem on my 4runner. This time it is an AC system. I live in Los Angeles and I need a fix fast, cuz it's 110 degrees outside. Here is the problem: when I first start the truck in the morning, the AC blows cold air (even though it could be colder), but if I shut the truck down and leave sitting in the sun for 20 minutes or more, when I start it back up, the AC blows almost worm air. But when I get on a freeway it blows cold again. What could be the problem???

P.s. it's 91 4Runner, V6 auto 2wd

lesha30 · 07-12-2004, 05:57 PM

My mechanic said that it MIGHT be:

87240-89127 Rear heater valve

But he is not sure. I don't wanna pay $90 for the part & 150 for installation if he is not sure.

lesha30 · 07-13-2004, 12:28 AM

Quote:

Originally Posted by lesha30

My mechanic said that it MIGHT be:

87240-89127 Rear heater valve

But he is not sure. I don't wanna pay $90 for the part & 150 for installation if he is not sure.

Anybody?

Marc · 07-13-2004, 08:51 AM

I'm not exactly sure how a 91 with factory A/C should work but unless the rear heater is blowing hot air all the time I wouldn't think it would have any effect on the A/C.

As far as the A/C working better on the freeway I would check to see if there is an electric fan for drawing air through the condensor (in front of the rad). If there is a fan it should activate when the compressor is running. Also check to make sure the condensor is clean.

yamarocket630 · 07-13-2004, 06:50 PM

How long does it take to get cold? If it's just a few minutes (3-5) that's probably normal in 110 degree weather.

07-12-2004, 05:27 PM	#1 (permalink)
lesha30 Registered User Join Date: Nov 2003 Location: Los Angeles Posts: 145	A/C help needed!!! Hey, I got another problem on my 4runner. This time it is an AC system. I live in Los Angeles and I need a fix fast, cuz it's 110 degrees outside. Here is the problem: when I first start the truck in the morning, the AC blows cold air (even though it could be colder), but if I shut the truck down and leave sitting in the sun for 20 minutes or more, when I start it back up, the AC blows almost worm air. But when I get on a freeway it blows cold again. What could be the problem??? P.s. it's 91 4Runner, V6 auto 2wd

07-13-2004, 08:51 AM	#4 (permalink)
Marc Contributing Member Join Date: Sep 2003 Location: Winnipeg, MB, Canada Posts: 456	I'm not exactly sure how a 91 with factory A/C should work but unless the rear heater is blowing hot air all the time I wouldn't think it would have any effect on the A/C. As far as the A/C working better on the freeway I would check to see if there is an electric fan for drawing air through the condensor (in front of the rad). If there is a fan it should activate when the compressor is running. Also check to make sure the condensor is clean. __________________ '91 4Runner SR5 V6 4X4 Auto, A/C (self installed) 4.56, 31x10.5x15 Nokian Vatiiva Tires Taurus fan (removed) '90 4Runner SR5 V6 4X4 Auto, A/C, 4.56 V6 power with V8 fuel mileage I've used Fram oil filters and dino oil in all my stuff for 30 years and never had trouble

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07-12-2004, 05:57 PM	#2 (permalink)
lesha30 Registered User Join Date: Nov 2003 Location: Los Angeles Posts: 145	My mechanic said that it MIGHT be: 87240-89127 Rear heater valve But he is not sure. I don't wanna pay $90 for the part & 150 for installation if he is not sure.

07-13-2004, 06:50 PM	#5 (permalink)
yamarocket630 Contributing Member Join Date: Jul 2003 Location: Burton, MI Posts: 234	How long does it take to get cold? If it's just a few minutes (3-5) that's probably normal in 110 degree weather.