Ok I have had this knocking sound in my engine since i bought my 93VE feb. of 2008 when I did an oil change and used thicker oil 10w-30 it went away for three months then came back. when i did an oil change again it only knocks when the car heats up. no technician seems to no what it is one said valves but why would the valves knock only when the car is hot. I'm thinkin lifters any ideas........... and what oil should I use and what oil stablizer product is the best for ex. Lucas, etc Thanx 4 help

 

You have the infamous VTC clack..Welcome to the VE30DE engine..

 

What is the VTC clack

 

Have you read the VTC threads in the general maintenance sticky?

 

Nope I haven't can u refer me the link?

 

just click the sticky dude...read the vtc threads, more specifically the "more vtc info" one..

 

Iight kool

 

variable timing cam I see its a rebuild not replace intersting..............Just another ? it doesnt cost lost of power right? and will it ever fail if i dont rebuild it?

 

no power loss unless you ground them out, then you have some loss in the higher rmp band, not much though..

yes they will fail in a terrible terrible way if left to clack for a long period of time..

 

Ok thanx man I will hop on rebuilding them I love my VE, and how much hrs. labor hrs. at a shop because I aint skilled to tackle this yet

 

you are looking @ quite a big labor ticket there mang, you might even have trouble finding a shop that will tackle the job..

i would guesstimate at least $700 in labor, maybe more in your area..

 

Got damm............... And last the noise doesnt come front where the VTC is directly it come from under the manifold on the opposite side does this make a difference

 

I have a similar issue with My 93 VG. There is a clacking noise once its warmed up. It doesnt have anything to do with oil, I don't know whether its coming from the Harmonic Balancer/Crankshaft pulley, or from inside the timing belt cover. Ive had people look at it, some say its from the crank pulley, others say its the timing belt tensioner. I havent had the belt changed since I purchased it, But I have had the water Pump done. It had 176,000 miles when I bought it, it now has 211,000 miles and rides like a champ! Anyone have any suggestions??

 

Is it like a ticking sound....or a snappy sound - could it be an exhaust leak that is hard to hear where it's coming from? Maybe you could buy a little spray bottle from the dollar store, and mix in 1/4 parts dishwasher soap to water and spray the exhaust manifold flanges....I did it to mine and saw a nice bubble show....

 

Well mine can't be the crankshaft pulley because the knock is on the other side of the engine and its funny All that noise but the car rides perfect

 

It's like Tick Tick Tick Tick Tick Tick very fast but when I drive it goes away.

 

Sound like this?

http://www.youtube.com/watch?v=iE-40XYBVhw

http://www.youtube.com/watch?v=0KfbhYqYY38

 

No its not an exaust leak, I drove one before that had that ticking sound, so I know its not that. It seems to sound like a diesel engine once warmed up a little. The crank pulley vibrates a little as I look at it. Someone says its the timing belt tensioner, and I thought it was the water pump, SO i replaced it. It went away for a little while, then once the car was running like normal it came back. But what ill probaly do start the process of elimination. Ill get the Timing belt and tensioner changed, and then if that doesen't solve it, then I know its the crank pulley/ harmonic balancer.

 

sounds more like the second one.............. although they're the same............a guy commented on that about changing the solenoids does that make a difference

 

You don't change the solenoids, you ground them out. This procedure basically turns them off and in most cases, reduces or stops the vtc clacking noise.

The procedure is detailed on craig braces webpage in the stickies..

 

clarification point:
the solenoids are not the issue, it is the VTC assemblies themselves (they are under the valve covers) that make the noise. The grounding just causes the solenoid to constantly be engaged and sending oil to the assemblies.

 

oh ok ill look it up

 

Iight went through this procedure just wanna be sure this doesn't damage n e thing does it?

 

nope, just makes the car a little bit slower cuz the timing is no longer variable.

 

can u notice the speed drop while driving?

 

it's not a speed drop... it's a power drop. you lose top end power. so your car doesn't accelerate as fast as it did before in the higher RPMs. it's not like you're driving along and all the sudden the car slows down

 

fixed..

 

Greeny fixed ur mistake but ok that's nothin 2 worry about

 

well close doesn't cut it in horseshoes, i suppose

 

lol i guess not with cars................but that power drop wouldn't be that big of change so ill be ok with that