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I drive a 2003 Nissan Sentra gxe and there's some very loud high pitched screeching when I turn the car on. It's lasting longer and longer and it will start sometimes when I'm driving when the heater is on. I recently got belt dressing, if I spray before I start te car it won't screech but if it sits a while and I don't spray it will screech. The radiator and belt were just replaced in July. Ht else could the screeching be?

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  • 14 Answers

I would just change the drive belts. They're inexpensive and definitely worth it.

Posted on Nov 24, 2014

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Posted on Jan 02, 2017

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SOURCE: 2000 hyundai accent - bad screeching sound coming from the belts.

hi as the timing belt is toothed it would not slip however it may be loose and in need of renew? as you do not mention milage ie period the belt is due for replacement ? the screech if this above is problem? would/could be the belt slip on the adjuster bearing which should also be renewed with belt i would first check out the alternator/p/steer belt as the loading of belt if slack/worne when starting from cold will give screech as it starts to overcome load of alter and especially p/steer oil pump then noise ceases as engine warms?? if you drop this belt off bfore you first start from cold ? would give an indication of which belt req's attention ? ps! as for age of car/milage? would not ignore the recommended milage for timing belt renewal ? hope this helps you diagnose problem ?

Posted on Oct 30, 2008

  • 1 Answer

SOURCE: 2003 Lancer ES High pitch squeal and constant squeak

Shortly after replacing the serpentine belt in my lancer, the same thing happened. It is NOT the timing belt. Belts squeal when they slip. If your timing belt slipped it would cause your car to run funny.

have somebody check the belt for wear (or do it yourself), replace if necessary. If it doesn't need replacement, just tighten it.

If you have the 4cyl engine that I have, the tightening is kind of a pain in the ****. Not a great design by mitsubishi. There's a pulley near the front right corner of the engine in front of the alternator. the belt should be running around this pulley GROOVE SIDE OUT. This is the tension pulley.

To tighten:
1) Lightly loosen the bolt in the center of the pulley (slightly loosen, DO NOT REMOVE).
2) Under that pulley there's another bolt. You can see that the bolt goes through a piece of metal
attached to the back of the pulley. Figure out which way you need to turn the bolt to move the
pulley toward the front of the car. (i don't remember if it's right hand thread, or left hand) This
puts extra tension on the belt. You probably don't need much. Over tensioning the belt can
cause pulley bearing failure. If you haven't done this work before, ask someone for
help
. It's better to tighten a little bit, a few times rather than overtighten once.
3) Don't forget to ReTighten the bolt in the center of the pulley.

If there's lots of cracks and pieces missing on the ribs or grooves of the belt you should replace it first.

Happy repairing,
Cliff

Posted on Mar 09, 2009

  • 1861 Answers

SOURCE: 2003 toyota sienna makes screeching noise when starting

I would guess that you have a stretched or loose serpentine belt. Common problem.

Posted on Mar 23, 2009

  • 1 Answer

SOURCE: 2003 Nissan Sentra Problem overheating and heater doesn't work.

I had this exact problem a few weeks ago. The repair shop first changed the thermostat. Didn't fix the problem. Next step, they found the radiator was clogged. They replaced the radiator and now everything works fine.

Posted on Mar 23, 2009

  • 6982 Answers

SOURCE: 2001 Pathfinder screeches on start

Remove the belt and check all pulleys for smooth operation. any binding at all is amplified when belt tension is applied. also check the belt itself...If it's glazed or dried out, it can be noisy.

Posted on Apr 07, 2009

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