1991 Toyota Camry LE - V6 Engine. Loud ticking noise that is RPM sensitive at front head after replacing timing belt.

Asked by terrywe May 31, 2015 at 03:22 PM about the 1991 Toyota Camry LE

Question type: Maintenance & Repair

Recent replacement of timing belt and water pump at 137,000 miles. Prior to this, the engine ran good with no unusual noises. Checked several times for correct placement of the belt with timing marks at both cams and the crankshaft. After replacing all covers and starting the engine, there is a loud ticking noise that increases with engine speed.  I had the timing checked by a shop and it was right on.  The engine starts quickly, runs well, good acceleration, but the gas mileage is terrible. The shop where I took it said the problem was a bad injector.  I have pulled the connecters on the front three injectors and don't hear any decrease in the noise.  I have checked and re-checked all of the vacuum lines and connectors and they are all correct.  Also, the only trouble code I have seen is for the "Knock Sensor", which I guess is correct given the noise from the engine.

Any help would be appreciated.

Any help would be appreciated,

3 Answers
1,075

Joe answered 8 years ago

it's very hard to locacte a knocking ,or ticking noise,I use a stephoscope pick one up at local autoparts,take tool and start around the area you worked on,did you replace the timing tensioner,check belts,better yet remove them,this will reduce noise.GOOD LUCK!

Mark helpful

terrywe answered 8 years ago

I did that. There is so much noise, I can't identify where it is coming from. I also removed the front head valve cover and inspected the valve gear and all looked good, nothing out of the ordinary. I did not renew the timing tensioner as it looked OK when I replaced the belt. I will try taking the belts off to reduce the noise and see what I find. Thanks for your help.

Mark helpful
102,585

Reelin68 answered 8 years ago

Try replacing the knock sensor. http://www.freeasestudyguides.com/knock-sensor-symptoms.html

Mark helpful

Your Answer:

Related Questions

Camry

Looking for a Used Camry in your area?

CarGurus has 37,807 nationwide Camry listings starting at $575.

ZIP:

Own this car?

Share your experience with others.

1991 Toyota Camry

Write a car review

Review another car

Shortcuts

Search Toyota Camry Questions

CarGurus Experts

  • #1
    Reelin68
    Reputation
    34,290
  • #2
    Tony Ciccotelli
    Reputation
    19,180
  • #3
    Tony Ciccotelli
    Reputation
    5,530
View All

Know more, shop wisely

Search

Related Models For Sale

Used Honda Accord
1,513 Great Deals out of 29,433 listings starting at $600
Used Toyota Corolla
1,663 Great Deals out of 24,787 listings starting at $975
Used Honda Civic
1,371 Great Deals out of 29,067 listings starting at $600
Used Lexus ES
459 Great Deals out of 8,695 listings starting at $1,000
Used Toyota 4Runner
1,090 Great Deals out of 19,141 listings starting at $2,000

Used Cars for Sale

2025 Toyota Camry For Sale
1,241 listings starting at $29,495
2024 Toyota Camry For Sale
107 Great Deals out of 14,446 listings starting at $22,994
2023 Toyota Camry For Sale
369 Great Deals out of 3,739 listings starting at $19,388
2022 Toyota Camry For Sale
271 Great Deals out of 2,590 listings starting at $15,300
2021 Toyota Camry For Sale
286 Great Deals out of 3,620 listings starting at $14,000

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.