Sounds like a diesel???

[Jordo2]

Hi, I got a 91 camry(3sfe), and when idling it sounds like a diesel? Once the revs are picked up, the noise is gone? Ive heard other camrys and apollos make this noise at idle in the past. But all seemed to run and drive fine? Can anyone tell me what this noise actually is? coz it's annoying me greatly Cheers.

[Ronnyboy]

Welcome to the club mate :)

Not sure whats causing it. It could only be because of the age of the car and the engine being cold.

[Jordo2]

Cheers. However this sound is allways there at idle regardless of it being hot or cold. I had an appollo that did the same thing when cold, then would sound normal wen hot. But this one is constant at idle. Motor has done a few ks...257000. Doesn't appear to burn oil.

[Ronnyboy]

Apologies, misread the thread.

Hopefully it's not the Valves

Have you tried the Engine and Radiator flush? Not sure if this i will do the trick though..

[Jordo2]

No probs, nah, haven't tried any flushes, was a bit apprehensive to use an engine flush as I didn't want to loosen all the probable gunk inside the motor, and have it clog something else? Perhaps I will put a couple bottles of fresh thinner oil (10w40) in to kinda clean it up before putting in some 20w60? Also, Oil light takes 3 sec to go out wen starting in the morning? Motor doesn't make any unusual noises Wen the light is on or wen it's off, just the "diesel" Noise at idle. I'm unsure if the filter is the non drain back type?