air conditioning slow

Submitted: Monday, Feb 19, 2007 at 12:51
ThreadID: 42477 Views:1300 Replies:5 FollowUps:4
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The air conditioner in my Hilux works well except when the weather gets very hot. It blows hot air and takes a long time to get cool. I had the same Hilux , earlier model, before and it was much quicker. Is there a thermostat that can be adjusted or does it need some other work done on it. The car has only done 47,000km and is 2 years old.
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Reply By: David from David and Justine Olsen's 4WD Tag-Along - Monday, Feb 19, 2007 at 13:05

Monday, Feb 19, 2007 at 13:05
It may need regassing. With the A/C running, find the evaporator and look in the clear window in the top. If you see lots of bubbles going past, it needs regassing.
AnswerID: 222659

Follow Up By: Twinkles - Monday, Feb 19, 2007 at 13:29

Monday, Feb 19, 2007 at 13:29
Could there be a further problem if it needs regassing at its young age?
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FollowupID: 483507

Reply By: Member - Tour Boy- Monday, Feb 19, 2007 at 13:50

Monday, Feb 19, 2007 at 13:50
Hi, find the condensor for the AC and make sure that it isn't obstructed or has dirt, insects or mud in the fins. Keep in mind that the newer gas in the AC doesn't (in my exp) seem to be as effective as the old systems.
Regards
Tour Boy
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Dave
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AnswerID: 222667

Follow Up By: David from David and Justine Olsen's 4WD Tag-Along - Monday, Feb 19, 2007 at 14:04

Monday, Feb 19, 2007 at 14:04
The condenser is a good place to check for obstructions , as noted above. If it has lost gas, it may have other problems, it may not. I find the mobile regasser dude here realy good. Does a good job of checking it over and is reasonably priced. The servicer can check it for leaks
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FollowupID: 483513

Reply By: whyallacookie - Monday, Feb 19, 2007 at 15:48

Monday, Feb 19, 2007 at 15:48
If it needs regassing it has a leak. It's amazing how many people think they just need a "regas" The gas itself will last al most indefinately.. If it isn't working it has gone somewhere. One of the most common places is the joins in the pipe where it goes through the firewall. If you have a look you'll probably notice one of the lines looks dirty at the joint or has a greasy film. If that is the case then it is a relatively cheap fix. Get a fridgy to replace the seal and gas. (They should also check for any other leaks too)
AnswerID: 222689

Reply By: Member - Olcoolone (SA) - Monday, Feb 19, 2007 at 22:49

Monday, Feb 19, 2007 at 22:49
If your Hilux is only 2 years old it sounds like there is a leak at on of the fittings, 99.9% of Denso air conditioning leaks in vehicles 3 years or newer are from instalation error not component failer.

You should still have your air con serviced every year thou.

We very rarley see vehicles with restrictions to the condensoe air flow causing a problem, nearly all the times the radiator temp will increase to a point where you will notice it.

Bugs and dirt do not seem to up set the condenssor, but shade cloth DOES and should never be used.

The vehicle should still be under the 3 year factory warranty so take it to you local Toyota dealer and get them to find the problem and repair it for you, if they have to service the air con make sure they put UV dye in.

R134a refrigerant works just or if not better than the old R12 if the air con system is designed for it and R134a does not leak out any quicker then R12 either.

Regards Richard

AnswerID: 222805

Reply By: Member - Olcoolone (SA) - Monday, Feb 19, 2007 at 23:11

Monday, Feb 19, 2007 at 23:11
Oh one thing I forgot! Do not worry if you see bubbles in the site glass,
in the olden day you use to fill the air con system up untill you got ride of the bubbles, with R134a you will proberly see bubbles, this is caused by oil frothing and not a lack of refigerant.
AnswerID: 222815

Follow Up By: Twinkles - Tuesday, Feb 20, 2007 at 07:29

Tuesday, Feb 20, 2007 at 07:29
Thank Richard. I've rung my local Toyota dealer. They told me to bring it in and they would put some dye in the system. The car is 2 years old in May. I think it has only a 2 year warranty.
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FollowupID: 483665

Follow Up By: Twinkles - Tuesday, Feb 20, 2007 at 07:31

Tuesday, Feb 20, 2007 at 07:31
Mistake. It is 3 years old in May and has a 3 year warranty. Thanks again.
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FollowupID: 483666

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