1998 GMC Jimmy A/C Compressor Leak

Depends on what's leaking. The fuel line runs down that side of the truck to a fuel filter near the front. If the filter or a filter connector has failed or is loose, try replacing the filter. If the problem is a leaking line, you will have to find the exact location of the leak and try either installing a repair kit (cut the line and insert coupler), or if badly damaged, replace the line.

Check the AC compressor to see if it is turning on, if it isn't the system is likely low on charge due to a refrigerant leak. You must have the leak repaired before adding any $10.00 per can R134, otherwise you might as well just flush the money down the John. Do not replace any parts until the problems have been diagnosed by a HVAC qualified tech,.

Check to see if the compressor is coming on when you turn the a/c on. If not check your blend door actuator behind the glove box. If it is bad it keeps your compressor from coming on, autozone has it for $59. only has two screws and the electrical plug holding it in.

check blend door actuator behind glove compartment it keeps your compressor from coming on.check to see if the compressor is coming on when you turn the air on.

It is a possibility, go to the low side inlet valve and release a liitle bit of freon at a time and see what happens, do it with the engine off and start it up to test.

gm offers a ac delete pulley that bolts where the compressor goes

There should be a low pressure switch located on one of the metal a/c lines. It probably has 2 wires. Sometimes it is necessary to 'jump' across this switch to complete the circuit to the compressor until it starts to accept freon and build pressure. This is a safty feature designed to prevent the compressor from locking up due to the absence of oil, which is carried by the freon. Good luck. Dave

Sounds like the system may be empty. In that event you need to find where the refrigerant went (the leak)

this is caused by the AC system being low on refridgerdent charge from a front compressor seal leak most commonly

What you can do is get your self a refrigerant from Wallmart about $7.00 and charge it, in compressor it self it tells you what kind of refrigerant is require for your compressor. follw instruction that comes with the refrigerant on how to charge it.
AC is running and setting in maximum while charging and dont overcharge.
As soon as you start chrging the compressor should start running when the pressure build up.