Question about 1998 Nissan Sentra

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1998 nissan sentra gxe air conditioning

Pump doesnt run. fuse is working and relay appears ok, the relay clicks which indicates to me that it is working. The pump spins freely but the clutch doesn't engage.

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Just cause the relay clicks and makes noise does not mean its working properly that relay provided you have the right one will engage the clutch and the chances of the clutch being bad are very slim so make sure that you have the right relay and get a replacement just for arguements sake and try it also when you select the air cond does the selector light to show that its working that also could be the problem now if the system is out of refriderant this could also be the problem.Hope this helps

Posted on May 29, 2008

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Car is 00 skoda octavia 1.9 tdi when i turn on ignition the heater plug indicator light does not come on on full turn engine turns over as normal but will not start no error shown on diagnostics on further...


I apologize for a delayed response as i was not at my desk.

Check to see if the fuel pump relay clicks when you turn the key on. If it doesnt click verify one terminal has constant ground if not you will need to run a new ground wire. If ground is good access pin 46 on connector 1 of the pcm to check for voltage if no voltage replace pcm if it has voltage replace green/white wire between pcm and relay. You can also first try to swap the relay with another one to see if that helps. If relay clicks then check the 15 amp fuel pump fuse and if blown replace. If fuse is good verify one terminal on the relay has voltage at all times and gray wire has voltage leaving relay when key is in crank position for for a few seconds when turned into on position. If gray wire leaving relay has voltage but not gray wire at fuel pump replace the wire.

Let me know,once you check the above.

Thanks and Regards

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