abrankhalid

Folks,

I am stumped. I have read everywhere on this forum and have found some interesting tips but havent been able to pin point the problem. Basically, my car ( 2004 AT with 113,000 miles ) got flooded ( at least thats my assessment) . I had parked it out on the street in the snow for a few days. My bad.

Anyways, long story short, i had to de flood in minus 10 and after doing all that, had to get some one to jump start. Thats when i noticed that there was a new noise in the engine bay, kind of a shrill whistle coming from around the throttle body. It sounded like an electrical sound. It only comes on when i turn the ignition to the ON position.

I removed the intake pipe connected to the throttle body to have a look at it more closely and found that the valve is stuck when the power is on. Even when i turn the key, the car tries to start a bit but the valve stays closed even when i press the gas pedal.
I have no experience on this matter and have been stumped by it. Any suggestions ?

Here is a link of the stuck valve :

zoom44

you have an electronic drive by wire throttle body. its controlled by the PCM not your right foot. its staying closed when starting because its cold as you said and needs to be choked down. keep your right foot off the pedal just the same unless you are trying to cut fuel by flooring the pedal.


now that whine sounds like an intake valve. could be the throttle body but i cant tell from that.

get a stethescope or a piece of vinyl tubing( one end to your ear the other to the engine) and see if you can isolate where the noise is coming from


its possible you messed somethign up with the jump IF it was done improperly

abrankhalid

Zoom44, thanks for the reply. I have isolated the noise to be coming from behind the plate. I will take off the throttle body and clean it out and see if still makes the same noise. In some more research, i read a few posts related to this. Apparently this shrill whistle sound is normal . But i have never heard it coming before. Maybe its another sound.

I borrowed a OBD2 scanner from O'riley's and i think because of me disconnecting the battery , there are no more codes saved. Also, i noticed that TCS light stays on at the ON position and so does the vehicle slip sign.

Thanks for clearing the thing about the throttle body being controlled by the PCM and not my right foot. What kind of damage do you think i could have done with a wrong jump . I have jumped many cars before and do know the general procedure . If there was something specific to a flooded rotary, i didnt know about that. Although, there are a few noises that i have never heard from the car before coming up. I w in the morning since its too cold to work outside right now.

The plugs ,wires and coils are less than 6k miles . Compression test done less than 6 months ago with no problems. I do not have the updated starter and that is def. on the cards now. The battery is also good.

I will update on the TB once i have it cleaned .

Brettus

iTrader: (2)

noise is normal . When you depress the throttle pedal with ignition on though it should open - does it do that ?

abrankhalid

Brettus,

Thanks for clarifying that. The pedal was pressed half way for the video while the ignition was engaged. Sorry for not clarifying that.

But if its a drive by wire TB, will it open just by me pressing on the throttle ?

The noise is not just a whistle but also a slight gurgling effect with it. The video does record that as well. I dont know if that is a clue or if its normal but today was the first time i ever heard that . Yesterday when i found out that the car wont start , i opened up the engine bay and did ask a friend to turn the ignition over. The noise wasn't there then. Followed the de-flooding procedure and got in to this trouble. Or as Zoom44 pointed out, maybe the jumping messed some electrical systems.

Brettus

iTrader: (2)

With ignition on and pedal depressed fully - throttle should be fully open .

Try opening up by hand - see if it is stuck . Maybe has some ice freezing it shut .


Also - either your starter motor or battery is stuffed . Unlikely you going to get it started turning over at that speed .

Brettus

iTrader: (2)

check out this link


https://www.rx8club.com/series-i-trouble-shooting-95/hard-starting-suspect-your-starter-motor-check-out-207244/

abrankhalid

Brettus,
Thanks for the link. I can understand that with this motor, its not going to start. I am going to arrange or something by tomorrow morning. Its going to be fun changing it with snow all around.
With the pedal depressed fully, the valve remains shut. There is no movement on its own. But when i press it with my finger , it stays stuck. However, when the power is off, the valve is lose and i can open it up easily. With the ignition on, its like there is some thing blocking it.

abrankhalid

I cleaned the throttle body plate/valve after taking it off but i did not go in to the manifold part as it started snowing . After a thorough clean, now the valve opens up fine when the gas pedal is depressed.
I decided to de flood the engine once again to make sure its fine and also changed the spark plugs . I took off the starter motor and had it checked at the nearby Autozone. After installing new battery posts, cleaning out the terminals and having the battery fully charged plus a jump, the starter turn over much faster.

Now, following the regular deflodding procedure of trying to start the engine, i have had limited success. I have managed to start the car several times but only for a breif second or so. The rpm goes up to 2 or so and then it dies down. I have tried pressing the throttle gently but its no use.

Any suggestions ? I am searching the forum and there are numerous other people who have posted about it. However, its not exactly the same problem. I will keep on searching but feel free to suggest a remedy ... Will save me a load of reading

dannobre

iTrader: (3)

Sounds like limp mode to me reset the ecu and see if the throttle works for about 5 sec after the key is first turned on...then stops working.....

Then lok at your MOP

abrankhalid

What do you mean by if my throttle works ? Should i reset the ecu and check if the valve opens up when i press the throttle ? its doing that already .
Or do you mean that i should reset the ecu and then try restarting the car ?

Also, what do you mean by MOP ? is it the oil metering pump ?

dannobre

iTrader: (3)

Reset and see if the throttle opens normally for about 5 sec..then stops opening....

Silver_Surfer

After you jumped and started your car, how did it run? Or did you just let it idle and look under the hood and heard the noise?