Took it to Pep Boys in Northeast Philadelphia. They ran the dye performance test to see what the problem was and found that there was leak at the O rings at the AC line. what should be the approximate cost to replace the O rings. I was told the O rings are not expensive, but the labor involved is a lot of work.
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Re: AC leak where O rings are at AC line
They are correct in that the parts are by far the cheapest part of the repair. To replace the o-rings the a/c system has to be properly emptied with an a/c machine and then the parts can be taken apart and the o-rings can be replaced. Once this is done the system has to be fully evacuated to remove any and all atmospheric air from the system before it can be refilled. I don't have any prices for you as I'm not sure which o-ring will be replaced or how long it takes to do so but the labor will generally be the largest part of the bill. Sounds like they are telling you the straight story here. Good luck, hope this helps!
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What DTC code(s) are you getting?
You performed a compression test on cylinder #1; did you test cylinder #2?
Compare the readings, if there is a significant difference in compression readings between the two, you may have a bad head gasket, a bad valve, etc.
The bottom line, the problem is internal to the engine.
You would need the shop manual to get the wiring diagrams to trace the circuit. I'm surprised Pep Boys did not go ahead and do the work. You have to back-track from the compressor clutch to find out where the power is stopping and why.
There are a variety of reasons. If there is a slow leak on your AC lines, once the pressure falls below a certain value, the compressor cut-off switch will no longer allow it to come on. Many times when a car stops blowing cold air, it has to do with either the AC compressor or a leak in the lines, though there are other possibilities.
If you take your car down to a Pep Boys, you can ask for a free AC check and they will check the pressure on your lines. If there is appropriate pressure, then you can tell generally that it is a component of your AC system, most likely the compressor. If there is no pressure, you can have them refill the freon, but bear in mind that it will eventually leak out again unless you have them find the leak and fix it.
cant recall on 96 if it is o-rings or gasket but defineitly has a seal that is now leaking. remove line,replace seal and use an evac. pump to pull a vacume on system. If it holds a vacume without leaking it will hold a charge and you wont waste your freon testing. Plus you should always evac. system before charging anyway
Pep Boys, Autozone, Advanced Auto, Napa, most all the major auto parts stores carry a recharge kit...a few Wal Marts even carry them---Or you can buy them online fom Amazon, Ebay, etc...
In most kits you'll find a can of refrigerant, a flexible rubber hose and a pressure gauge. Follow the instructions in the package to assemble the pressure gauge part of the kit. Usually you'll have the hose already attached to the gauge, such as this one.
ok one of the hose clamps is not tight enough when it warms up it expands and when it cools then it leaks so tighten all hose clamps when its warm and then again when its cooled and prob, aught to go away
The Crank Seal is Part of the Motor Not the Power Steering Pump. You can take your Truck to the Car wash and Clean the Motor Really well While RUNNING. And then just Drive home. You will be able to see exactly where the Leak is Coming From. Please Rate My Response! Thanks!