Engine noise on 97 Sunfire GT

Asked by May 06, 2011 at 12:26 PM about the 1997 Pontiac Sunfire 2 Dr GT Coupe

Question type: Maintenance & Repair

Hey the car has 109,xxx miles on and just recently developed a knock under the valve cover that seems to match the engine speed. Here is a recording of the sound http://www.youtube.com/watch?v=bRY2rO3EjPg. Is it time to replace the timing chain or is my engine shot? Any advice would be appreciated.

6 Answers

1,745

Time to replace the motor. :/

1 out of 1 people think this is helpful.
20

does your car still have pretty good speed. meaning the noise does not affect the car speed ability? if yes then you just may need a lifter adjusted or so. Sometimes trash can get under your lifter and cause it to make a ticking sound, if you haven't been changing your oil as regular as you should. Try changing your oil and see if that helps. it should eventually go away if it's gotten trash under it. AS long as it is not a deep knocking, you should be good. Generally, a knocking from under the valve cove is usaully associated with a lifter and or trash. Hope this helps. Alicia

2 out of 2 people think this is helpful.
1,745

Lifter wouldnt cause that loud of a noise, plus theres hydralic lifters so you cant adjust them. Good Chances theres somthing internal, its a shame cause it only had 109k on it :/.

10

Just a FYI. The first and last post are completely wrong. Hydraulic lifters can get stuck in a collapsed position causing excess clearance between the rocker arm and the top of the lifter. This is what makes it tick, As far as needing to replace the Engine thats horse shit. Anyone who would replace a Engine over a little lifter tick is an absolute moron. Thats going to the extreme. At most the lifter needs replaced. At the least the lifter may be able to be freed up by flushing the engine and then adding a good quality oil. I am not sure why people try to give advice who have no clue what they are talking about. Alicia's answer is actually pretty decent advice. It is advice most people would give if they didn't want to break down an engine to rebuild. Again keeping good oil in you car is essential.

1 out of 1 people think this is helpful.

Wow! It is Feb 2017 my 97 had some motor noises that were getting louder then one day, that same noise showed up. I started at the top end and got to the oil pan which was a BEAR to get off to find #4 rod bearing spun and the crank egg shaped and worn, maybe 1/32 inch or more! That noise is most surely one of your rod bearings, mine was #4. This situation has spelled the end of life for many 2.4l as they age. if the car is special get a good rebuilt engine, if not sell it as an anchor. Dan

3,425

And just another thought, couldn't agree more with Jim. Many items in that valve train will cause that type of noise, bent push-rod, worn, broke, split, or gaulded rocker arm(s)...and yet, from the video with poor lighting, that sound could even be a loose torque converter bolt...seen all many times. ATM

Your Answer

Add photo

Related Questions

  • what manual trans are comparible to use in a 97 sunfire gt 2.4 2 answers

    1997 Pontiac Sunfire

    -

    Maintenance & Repair

  • Number of quarts to refill transmission of 1997 sunfire with 2.4L engine? 5 answers

    I am adding transmission fluid in my 1997 sunfire gt with 2.4L engine but after 7 quarts i still can't see the fluid filling up. How many quarts should it take to replenish it after transmission flush...

    1997 Pontiac Sunfire 2 Dr GT Coupe

    -

    Maintenance & Repair

  • Weird noise 1 answer

    My car was leaking oil and I was told it was a head gasket seal so I took it to a mechanic and they replaced it but they also said my timing chain cover gasket and timing chain tensioner was shot s...

    1999 Pontiac Sunfire 2 Dr GT Coupe

    -

    Maintenance & Repair

  • 99 Sunfire GT 2.4L, hard starting 2 answers

    My car just started being hard to start. I hear the fuel pump pressure up, I have fuel to the fuel rail. Just replaced the crank position sensor, had code PO335. I cleaned the TB and intake. I have ...

    1999 Pontiac Sunfire 2 Dr GT Convertible

    -

    Maintenance & Repair

  • Can a 2.4L from 2001 sunfire gt fit into a 99 sunfire gt 2 answers

    i have a 99 pontiac sunfire gt and the engine blew.my brother in law has a 2001 with a 2.4l just wondering if this can work

    1999 Pontiac Sunfire 2 Dr GT Coupe

    -

    Car Customization

Sunfire

Looking for a Used Sunfire in your area?

CarGurus has 359 nationwide Sunfire listings and the tools to find you a great deal.

ZIP:

Search Pontiac Sunfire Questions

Pontiac Sunfire Experts

#1 John Saffrahn
John Saffrahn
Reputation 2,610
#2 Joeyadams
Joeyadams
Reputation 1,310
#3 Warren0007
Warren0007
Reputation 1,230
View All

Related Models For Sale

Used Chevrolet Cavalier
1,084 listings
Used Pontiac Firebird
10 Great Deals out of 798 listings starting at $1,800
Used Ford Mustang
301 Great Deals out of 45,096 listings starting at $2,000
Used Pontiac Grand Prix
25 Great Deals out of 2,938 listings starting at $879
Used BMW 3 Series
1,131 Great Deals out of 35,653 listings starting at $900
Used Pontiac Grand Am
1,325 listings starting at $799
Used Toyota Camry
875 Great Deals out of 91,061 listings starting at $1,300
Used Honda Civic
511 Great Deals out of 80,658 listings starting at $558
Used Ford Escort
357 listings
Used Chevrolet Camaro
158 Great Deals out of 35,580 listings starting at $1,995
Used Toyota Corolla
722 Great Deals out of 74,312 listings starting at $1,790