getting very hot with a/c on

**vrcalais5ltr** · 22-10-2009, 12:02 PM

as everyone would probably know by now its a V8. normal cruising on the highway it sits round halfway yesterday it was 35 degrees and sat just over half. i switched the a/c on and it went well over 3/4s before i noticed and switched it off.
i checked the coolant levels and everything and everything is spot on. what should i be looking for? Summers coming and i will definately be needing the a/c. cheers guys

**seraphic06** · 22-10-2009, 01:27 PM

Check that the thermo fan is kicking in.

**jimbojones889** · 22-10-2009, 01:31 PM

check that the thermo itself is actually opening all the way. maybe time for a flush before the really hot weather gets ya

**hako** · 22-10-2009, 01:49 PM

Check that the electric fan is coming on when the A/C is on....

**vrcalais5ltr** · 22-10-2009, 10:49 PM

ok a bit more info on it unsure whether the a/c fan on the front of rads coming on ill check tomorrow. just over a month ago it had new rad put in and hole system flushed out. and the thermo is constantly on because some idiot has hard wired it to the battery and i havent had the chance to hook it up properly yet

**hako** · 22-10-2009, 11:08 PM

I didn't think the V8's had thermostatic (electric) radiator fans...don't they have an engine driven clutch fan?....plus an electric fan in front of the radiator for the A/C.???

**GAMBLR** · 23-10-2009, 07:59 AM

Check ya theromostat as well. With the AC system not used much during winter, it helps to check it all out before summer comes to get it working properly

**vrcalais5ltr** · 26-10-2009, 03:51 PM

I've checked everything and it all seems to be working properly its got me F*&#ED

**speco** · 03-11-2009, 03:02 PM

hey mate im having the same prob just not as bad! mine sits at the 2nd- 3rd notch (from C) in 30c but then turn the aircon on sits bout the same till u stop, then slowly goes up. i did a test the otha day in drive sitting in the drive way it went to 5th notch and stayed there for 6 mins, turned the aircon on and left it in drive it went to 7th notch (3/4) in about 5 mins and then starter only slowly creeping up after another 5 mins, easy way to cool her down in the heat is at the lights put her in nutral idle her up to bout 1500- 1750 and it draws alot more air than idle does and watch the temp go down fairly quik,

also i was looking at the thermo fan for the ac the other day and it doesnt really draw much might be worth changing it over with a more power ful one, also my aircon radiator looks a bit damaged as in the fins anrt all straight which wouldnt help prob

**vrcalais5ltr** · 03-11-2009, 05:13 PM

yeah i think i found the problem with mine. the temp still sits around half or a touch over but the thermo fan for the engine wasn't connected up properly and was only intermidently working. hate buying second hand cars u never know whats been done to em

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