Help - Mass airflow sensor/airfilter/throttle body

R

Ringmaster

Active LVC Member
Joined
Mar 27, 2004
Messages
125
Reaction score
0
Location
Chesapeake Bay
Greetings, We have a 2003 LS V8 Sport. It was running perfect yesterday. Wife leaves for work this AM and a few miles down the road the engine light comes on and there is reduced power. She limps to dealer who after the $100 diognostic tells her that the airbox cover was loose and water/snow got in there and soaked the airfilter and ruined the mass airflow sensor. And by the way you need a new throttle body. I'm pissed because if this is possible we just had the oil changed a week ago and I can only assume the mechanic there did not snap down the airbox tabs. I can see the airfilter getting ruined but wouldn't the mass airflow sensor just dry out and be fine? Can a throttle body go bad in one day? Like I said: the car was perfect yesterday.
 
I've heard of the system saying its a bad throttlebody because the mass air was bad.


I would think it would dry out and be fine but...maybe.
 
If the MAF got wet and the car was run it could still get damaged. I doubt you have a TB problem but if enough water got down in you could have other problems.
 
I told the dealer to replace the filter and MAS and I'll see what happens before I decide to lay out $580 parts + labor for a throttle body. The service manager told me they go bad at 80,000 miles. I never heard that before. I also have a 2002 with 115k and the throttle body is fine. In reply to another poster I have never checked the plug wells on this car because I have never had a miss. I have replaced coils on my 2002 however. Like I said the car was running perfect yesterday.
 
Latest crap on this story. I had told the dealer that I wanted the "wet" airfilter and the "bad" MAS. I get a call that if I want the bad MAS that there would be a $35 core charge. Do they rebuild these things like an alternator? What a pile of crap.
 
Ringmaster said:
She limps to dealer.
Click to expand...


Found your problem! :p


Seriously though, If that much water got in there, might want to check the weatherstripping on the front of the hood. There's no reason that much water should be in the engine bay.
 
Ringmaster one thing you need to know is the throttle body (TB) on your 2002 is a regular cable operated one. The TB on the 2003 is a fly by wire one which means NO throttle cable a little stepper motor runs the TB so way different. But I would of just dried parts out then retry to see if problem comes back. The mass air flow is just a hot wire and its kinda sealed.
 
Also you should take car to Auto Zone for free code check then come on here and ask what peeps think problem is.
 
I am sick of peeps calling car piece of crap when someone caused the problem!!!! And yes they do rebuild these. If you buy one at parts store they want your old one for a core.
 
Excuse me but if you are refering to me I didn't call the car anything. I own 2 of these cars. I'm just trying to find out if what I'm being told is true since some of the stuff makes no sense. Now :q:q:q:q off I'm not in a good mood.
 
pektel said:
Found your problem! :p


Seriously though, If that much water got in there, might want to check the weatherstripping on the front of the hood. There's no reason that much water should be in the engine bay.
Click to expand...

Good thinking.:slam


Did you see any water yourself? If not they are f*cking you.

It may just be the intake itself is loose or something.
 
As to the questions about a lot of water getting in this thing I don't see how that's possible. We have had some snow lately but the car wasn't taken out that day. It's been cold since so there has not been a lot of standing water on the streets. AND my wife mainly works at home only going out on appointments once in a while and she would know better than to drive thru a pile of water. As an aside one of those airfilter box tabs has been broken on my 02 for years and I never had this problem.
 
Check the rest of the tube. I bet it is disconnected some where. If they didnt close the box all the way chances are they fumbled around in other areas. Worth a thought.

It could toss bunk codes. Which is probably why the say it needs a new TB.
 
Sorry if i took that wrong but I saw "What a pile of crap" then you mentioned the airbox lid being open what else am i suppose to think? Just trying to help.
 
"What a pile of crap" was refering to the dealer and the problem. Not the car. My wife is back with the car. The airfilter is as dry as a bone. I have a call in to the service "advisor" to ask him what's up with that since he told me it was soaked. Also the worksheet states that the throttle position sensor is out of sync. They never mentioned that. I was told the car had a bad throttle body. Does out of sync mean it could have been adjusted? The car is running normally and I'm glad I didn't spring $1200 for a new throttle body.
 
Gotcha. Just glad I didn't tell you to F off that would be kinda rude. LOL The TPS setting is simple all is needs to be is under 1 volt at closed throttle. They like a setting of around .95 V and rarely go off sync. New ones are not slotted like the old ones where you could tune them into the .95V spec. But a dremel takes care of slotting them when I have to do that. I would not worry about it only time to worry about TPS is if it has a dead spot in its travel its just like a light dimmer switch in your house.
 
So they didnt perform any repairs yet?

I know it was something slightly disconnected or something on those lines.
 
Yes the MAS was replaced along with the airfilter to the tune of $494 wich includes the diognostic. BTW the invoice states that the DTCS codes that were pulled are P2106 & P2135. Along with the invoice stating that the T position sensors are out of sync it states that customer declined the ETC and that the ETC fault may cause problems in the future. What is the ETC?
 
I wonder what electronic traction control has to do with the problem I had. I can't wait to talk to this guy when he calls me back.
 
You must log in or register to reply here.

Members online

No members online now.
Total: 103 (members: 0, guests: 103)
Back
Top