Transmission Problems? Ask a Mechanic for Answers ASAP
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What is the year, make model and engine?
07 pontiac g5 2.2
I see, thanks. Do you know if there is power to both sides of the fuse and power to the relay?
Yes there is power to the coil connector about 14v also the relay clicks on and off
I see, thanks. Does the clutch also kick on and off? See if it does that with the compressor unplugged also, thanks
Hmm no the clutch does not function. The coil reads as shorted or no continuity. I plugged in a new coil to the clutch coil connector. Doing this blew the 10 amp AC fuse and also shorted the new coil.
I see, thanks.
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That is a bad compressor clutch diode. Easy to replace and available at Radio Shack and such. Some are in the wire connector at the compressor and some are in the under hood fuse block, (C60 or C67 compressors)
Please see attached diagram, thanks
Yeah I do have the Haynes wiring schematic, diode was my guess. I have checked the clutch coil connector pulled the full thing out of the sheathing. Also checked the fuse box. No relay or fuse is labeled for a diode. Is it some place I'm not looking?
That is all the information that I have on it, but wait there may be another expert who has more. I will opt out and open it back up. Please DON’T REPLY to this post as that will lock the question back to me, also DON’T RATE THE ANSWER yet, someone should be along shortly, I’m sure, thanks and sorry I wasn’t able to help with it.
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Hello, the diode is built into the clutch coil connector.
Hello and thanks for your reply.
Clutch coil connector does not appear to be bulky. If u cut off the car side (male end) and open it up, there will be a diode inside?
It should be the diagram shows it there, see below. Usually gm puts them inside or outside and in a type of heat shrink
Hmm, yeah there is definitely no bulge or shrink wrap prior to plug. Ive also called wells, a maker of an OEM comparable replacement.
They said, a replacement connector does not include a diode inside. Not that that means anything.
You can always install one, here's the sheet with part number info