Results after spark plugs and Throttle Body Cleaning

[stockmover]

In a previous post I had wrote about a slight whining sound I was hearing from the left side of the engine since I installed spark plugs, fuel filter and PCV Valve. Its a V6 so I had to remove the intake manifold to get to the rear 3 plugs.

Today I did a throttle body cleaning based on the DIY post here. Came out pretty well I must say. It was fairly dirty. I noticed the car started up much easier. The RPMs were high(1,800) for a second, but I did have the hood up and its about 30 degrees out right now. After I closed the hood and about 3 minutes later it was down to 1000 RPMs.

Question: Does anyone think I need to change my wires since I did my spark plugs? Could that have caused the whining sound I am hearing now, occasionally it sounds like its trying to cut off. Like a loss of power sound almost. Anything other suggestions?

Thanks,

Stockmover

[Kep]

Whining sound seems more like a loose fan belt to me but I don't know of any on the driverside. If it could be a whistle then maybe you dislodged a vacuum line. There are several.

I can't see spark plug wires resulting in a whine. However, you can check their resistance and determine if they need to be replaced. Check the distributor cap center post (if you have one) as well. I believe 20,000 ohms resistance is the max acceptable.

Kep

[xtremeskier97]

Originally Posted by Kep

Whining sound seems more like a loose fan belt to me but I don't know of any on the driverside. ....

Our cars dont have any fan belts at all...so that cant be the problem.


Nothing on the drivers side except for transmission, vacuum lines, and distributor. Could be the distributor making some noise. I had a Honda Accord 92 model that the distributor went out on and it made a whining sound before it died.

[stockmover]

Thanks again for the opinions. I called the local Toyota dealership today and they said it would be around $92 to run a diagnostic to tell me the problem. I really do not want to take it there but the check engine light is irritating.

It's cold out today but I will try to let it run then mess with some of the vacuum lines to see if I hear any difference. I might get lucky and find something there before taking it in.

Originally Posted by xtremeskier97

Our cars dont have any fan belts at all...so that cant be the problem.


Nothing on the drivers side except for transmission, vacuum lines, and distributor. Could be the distributor making some noise. I had a Honda Accord 92 model that the distributor went out on and it made a whining sound before it died.

[dc_98_cam]

Sometimes it is difficult to get the intake manifold gaskets to seal correctly...You might take a can of starting fluid, and carefully put a few sprays around the intake manifold ... listen to see if there is any difference in RPMs...

[Hajoca]

Does auto zone or Murrays read CEL codes for free still?

[stockmover]

I am not sure. I took the car to Sears and Autozone, they both claimed they cannot read any codes and do not have the proper equipment to find out what the check engine light means. I think I am getting the run around but who knows.

Originally Posted by Hajoca

Does auto zone or Murrays read CEL codes for free still?

[stockmover]

I hope I did this correct but I sprayed a little starting fluid near the throttle body while the engine was idle. I noticed a change in the sound of idle immediately. The RPMs moved up some then went back down to 1000.

Here is the picture of where I sprayed. Does this tell me anything? It has to be an air leak somewhere, since the check engine light only came on after I installed the spark plugs and had to remove the intake manifold.

http://www.box.net/shared/static/2363sqrs4g.jpg

Thanks,

Stockmover

[xtremeskier97]

Autozone will read the codes for free. Go to a different one or get someone else at that store that wont give you the run around.

[blackhawk]

^ yah the read mine and i just came home and look it up here and found the answer so i was good

[marc780]

Does anyone think I need to change my wires since I did my spark plugs? Could that have caused the whining sound I am hearing now,

No.

Here is the picture of where I sprayed. Does this tell me anything? It has to be an air leak somewhere, since the check engine light only came on after I installed the spark plugs and had to remove the intake manifold.

Try a different hose clamp. Once you take the old clamp off, remove the big hose and inspect it, and the sealing surface on the TB for dirt and the hose for holes. Tighten the heck out of the new hose clamp and test again.

When i did the plugs on my V6 it was like minor torture because i did not want to remove the plenum as you did - i just worked behind the plenum to get the plugs out. It was difficult and frustrating but i managed to do it.
having done car work like this many times before - I did not remove my plenum because i did not want to risk a vacuum leak removing an intake piece just to change the plugs - maybe the new gaskets you put on are not sealing right and need to be redone

[stockmover]

I will try the new hose clamps to see if that is the problem. It's irritating because I know its something minor and overlooked. I will also try another Autozone or Advance Auto to see if they can tell me what the code is. I will keep everyone updated.


Thanks,

Stockmover

Originally Posted by marc780

No.


Try a different hose clamp. Once you take the old clamp off, remove the big hose and inspect it, and the sealing surface on the TB for dirt and the hose for holes. Tighten the heck out of the new hose clamp and test again.

When i did the plugs on my V6 it was like minor torture because i did not want to remove the plenum as you did - i just worked behind the plenum to get the plugs out. It was difficult and frustrating but i managed to do it.
having done car work like this many times before - I did not remove my plenum because i did not want to risk a vacuum leak removing an intake piece just to change the plugs - maybe the new gaskets you put on are not sealing right and need to be redone

[ROBS]

I second the hose clamp, but if that doesn't solve the noise, I would also try the starting fluid thing near the intake where you took it off. Spray it all around. Did you re-seal it like I suggested in the other thread? A new gasket is only like $5 or less for a cheap one at any old parts store. Even if you get a fel-pro and use the black form-a-gasket instead of OEM, its a lot better than the old one you re-used.

[stockmover]

Are you talking about the gasket for the throttle body? I checked autozone online for all of the gaskets and I do not see one for $5, I do see a throtte body gasket for $15. Is this the one you are talking about? I meant to ask you that on the previous thread.

I plan to work on it Sunday.

Thanks.

Originally Posted by ROBS

I second the hose clamp, but if that doesn't solve the noise, I would also try the starting fluid thing near the intake where you took it off. Spray it all around. Did you re-seal it like I suggested in the other thread? A new gasket is only like $5 or less for a cheap one at any old parts store. Even if you get a fel-pro and use the black form-a-gasket instead of OEM, its a lot better than the old one you re-used.

[csaxon]

The clamp on your air filter box (left of the maf) appears to be unlocked. Perhaps box isn't sealed and sucking air through the crack.