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Is your car throwing codes or are you having a hard time passing your state or county emission test? Ask how to fix it here.
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josh2.slow
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p0645 pop up

Post by josh2.slow » Thu Jan 03, 2013 8:26 pm

My car throw this code today 645. But it making noise from the passager side can any one tell me wat that code mean?

occasional demons
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Post by occasional demons » Thu Jan 03, 2013 10:18 pm

Sticky in the engine section.
viewtopic.php?t=365
P0645 A/C Clutch Relay Circuit An open or shorted condition detected in the A/C clutch relay control circuit.


Depending on the noise, it may be related, or something along the lines of the accessory drive belt has partially failed, and ripped the A/C compressor clutch wire loose.
Bill
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epic

2001 Neon ES MTX with '02 R/T PCM
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josh2.slow
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Post by josh2.slow » Thu Jan 03, 2013 10:25 pm

It like a grinding noise and the car almost shut off one me... Thanks for the info bro

occasional demons
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Post by occasional demons » Thu Jan 03, 2013 10:32 pm

Grinding on that end of the engine could be bad. Have you looked at it yet? Short of the center mount totally failing, and the engine hitting the frame, it could be the water pump going.

Or the A/C clutch has shorted to permanently on, and the compressor is making the noise, or it is the compressor bearing in the clutch.

Compressor not running, but the bearing is shot that the pulley spins on. Removing the belt will confirm/eliminate that. But you will have no PS. It could also be the PS pump too.
Bill
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2001 Neon ES MTX with '02 R/T PCM
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josh2.slow
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Post by josh2.slow » Thu Jan 03, 2013 10:49 pm

No not really it to cold out lol but the whole ac got replaced last summer but i toke it back to the shop at least 7 time already cuz it be leaking my freon... The steering making noise but it been doing it for awhile now... Water pump was done bout 50,000 mile ago. But the noise come and goes

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