constant grinding motor noise

Asked by Apr 09, 2016 at 12:39 AM about the 2000 Pontiac Grand Am SE

Question type: Maintenance & Repair

Hey guys 2000 grand am 2.4. I have a constant
grinding noise from the motor and I've been told it'
could be the timing chain rubbing the guides but Iif
that was the case I figured the sound would
change during acceleration? It's a constant
grinding, cold/hot accel/decel in any gear driving
or at idle. Any help would be awesome thank you
guys

6 Answers

57,515

It is hard to say from your description. What part of the engine is the noise coming from? Front of the engine, top, or bottom.

I would definitely say the front, not as noticeable when inside the car but louder than u could imagine outside

57,515

Ok, I would take the serpentine belt off and start the car to see if the noise is still there, If the noise is not there anymore with the belt off, then there is something wrong with one of the pulleys, water pump, or belt tensioner. If the noise persists at the front of the motor then determine if it is coming from the timing chain.

1 out of 1 people think this is helpful.

So ive narrowed it down to the AC compressor, theres metal shavings on both sides of the pully for it. Is it something i can bypass or does it need to be replaced

57,515

So that would be the AC compressor pulley bearing. That is easily replaceable. http://www.carid.com/2000-pontiac-grand-am-air-conditioning-heating-parts/four-seasons-ac-compressor-clutch-63186556.html ......You may be able to get these parts at your local parts store. I do have a sight to order a bypass pulley so you could eliminate the AC compressor if you like.

Ill weigh out both options, i appreciate your help!

Your Answer

Add photo

Related Questions

Grand Am

Looking for a Used Grand Am in your area?

CarGurus has 1,309 nationwide Grand Am listings starting at $799.

ZIP:

Search Pontiac Grand Am Questions

Pontiac Grand Am Experts

#1 tenspeed
tenspeed
Reputation 7,490
#2 John Saffrahn
John Saffrahn
Reputation 1,580
#3 Tom Demyan
Tom Demyan
Reputation 1,390
View All

Related Models For Sale

Used Pontiac Grand Prix
23 Great Deals out of 2,897 listings starting at $879
Used Pontiac Firebird
9 Great Deals out of 793 listings starting at $1,800
Used Chevrolet Impala
597 Great Deals out of 29,137 listings starting at $1,300
Used Chevrolet Malibu
811 Great Deals out of 88,735 listings starting at $1,900
Used Honda Civic
509 Great Deals out of 81,592 listings starting at $558
Used Pontiac Bonneville
523 listings starting at $1,695
Used Honda Accord
740 Great Deals out of 82,789 listings starting at $500
Used Ford Mustang
319 Great Deals out of 45,670 listings starting at $2,000
Used Nissan Altima
805 Great Deals out of 78,287 listings starting at $470
Used Chevrolet Camaro
144 Great Deals out of 35,549 listings starting at $1,995
Used Toyota Camry
879 Great Deals out of 92,136 listings starting at $1,300