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Got a question, 98 4wd Blazer


Skymac
07-19-2007, 02:13 PM
Here Goes:

Got my AC filled back up after not having it working for about 7 months, just filled it and it started working great, fixed the leak too, haha...

Changed the PCV Valve the same day, and also changed 3 of my 6 S. Plugs, getting to the other side tonight as I ran out of will the other day.

Last week I noticed some fuild leaking on the ground from the radiator, took it down to the local pros for them to put in a new radiator tank and they also rodded it/cleaned it. All is good now but everynow and then while idleing with the air on, about 500rpms, it drops below for a very brief moment, then comes back up and does that routine until you give it just a little gas, then sometimes it does not do it at all. It has also happened once or twich with the air off, just acts like it is loading up. Seems to be running good other wise.

MT-2500
07-20-2007, 09:36 AM
Here Goes:

Got my AC filled back up after not having it working for about 7 months, just filled it and it started working great, fixed the leak too, haha...

Changed the PCV Valve the same day, and also changed 3 of my 6 S. Plugs, getting to the other side tonight as I ran out of will the other day.

Last week I noticed some fuild leaking on the ground from the radiator, took it down to the local pros for them to put in a new radiator tank and they also rodded it/cleaned it. All is good now but everynow and then while idleing with the air on, about 500rpms, it drops below for a very brief moment, then comes back up and does that routine until you give it just a little gas, then sometimes it does not do it at all. It has also happened once or twich with the air off, just acts like it is loading up. Seems to be running good other wise.

Are you sure the rodded the rad?
I have not saw that done for years?
Any check engine lights?
Did you use a AC delco pcv valve.
Any vacuum leaks or air intake leaks?
A good scanner should pick up the problem.
MT

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