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wishmaster wrote:Driving on the highway the other day when i suddenly hear a loud hiss like a blow off valve (no i dont have turbo), when i reach home i realise the ac not working anymore......ever encountered this before?
Hook wrote:What causes the a/c to make a hissing noise (you hear it loudest through the vents) every time the compressor cycles on?
There are no leaks in the system (checked with the probe thingy), and it get's cool, not cold, so I suspect it wasn't gassed up to optimum pressure initially and that's what's causing the noise.
If this is the case, can you recommend somewhere I could get a top-up of the older R12 gas for a reasonable price?
Strugglerzinc wrote:Funny how this thread is labelled "Auto A/C diagnosis help-Answers for auto A/C troubleshooting" yet none of the A/C persons giving any answers other than "Come check us, we can fix it".
Went by one of the people in this thread for a blown resistor board in an XTrail, a fairly common problem and easily diagnosable, heck, i came up with the diagnosis on my own before going to the King to confirm and repair.
I was told i had to make an appointment, leave the vehicle for maybe half day, as they would most likely have to remove the dash to get to the blower, I'd have to pay $xxx.00 to get it diagnosed plus the cost of the repair.
Thanked them and went straight to an A/C guy in the Bamboo who diagnosed, swapped the part and i left in under 30 min for under $300.
Maybe there are certain diagnostic procedures to follow, i dunno, but being as experienced as they are, i am 100% certain they knew the issue but were rolling out the long story for a big job.
It's one thing to be a big name in A/C repair but quite another to be straight with customers.
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