mrlifts

I have a 97 3.2 and when the engine reaches 1,500 rpms, it starts to sound like a diesel engine. However, it runs just fine at all other RPMS. The Dealer says it is normal for all 97 TLS. If I put the car in neutral and rev to 1,500, it starts to run rough. Does anyone else have this problem? If so, what cured it?

Thanks,
Mrlifts

Ken1997TL

Its normal. Its a 90 degree V6, which tends to be rougher than a 60 degree. The 3.5 RL's engine has a balancer which smooths this out. Our engines dont obviously.

96teeluxury

imagine.

pi1996

my car sounds rough in drive.. when i rev it in park its fine..

its 2.5..

maybe my bypass valve on the intake is stuck..
but, then it would be same in park.

i do have one clip missing where air filter cap is.

would that do it?

anyway.. any ideas anyone?

alphason'sac

Anyone? I have the same problem with my 2.5. She sounds/feels rough at a stand still while I am in, but when I put her in neutral it's smooth as silk. Other than the fact that she is 10 years old, I wonder what causes that. It hasn't always been that way.

TexasHonda

A new set of plugs, wires, distributor rotor, and distributor cap from the one time factory emissions service made my 2.5TL purr like a kitten, under load or not.

I've heard of damaged engine and transmission supports causing vibration. This would be consistent w/ vibration w/ the engine in gear and stopped.

good luck

crucial24

am is it normal going off topic a little when my TL 96 2.5L is in park or stop its rpm is lil under 1 is that sound correct to you or is there a power issue?

TexasHonda

Mine runs about 750 rpm at idle. If you're at 1000 rpm, you may have a slight air leak in the intake system somewhere. It should definitely be in the range 750-850 rpm when fully warm.

It may help to clean the EACV and throttle plate w/ throttle body cleaner.

good luck

crucial24

oh ok thx 4 da info

crucial24

but do you have a sound sytem in your car aftermarket or some sort of electronics that use quite a bit of power??

meazz1

Make sure the exhust manifold is not cracked.