00 Sonata help please

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00 Sonata help please

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00 Sonata help please - 3/25/2008 7:41:05 PM

R.U.Krazy

Posts: 3
Joined: 3/25/2008
Status: offline

I have an 00 sonata 4cyl, 173K miles. There is a hesitation on take off, it is worse when the engine is cold. started doing this one week ago. The engine light is on, the dealer told me it is running lean, and the air flow sensor in the air intake hose, between the the air cleaner and the engine is the problem. This part cost $460.00 bucks. My problem is, I don't believe the dealer, here is why. The engine light has been on for two years(I know, hard to believe). Two years ago, another dealer told me that same part was bad, but the car has been running fine for two years(engine light on) with out the $460.00 part.
What else could be causing the engine to run lean?

Post #: 1

RE: 00 Sonata help please - 3/25/2008 7:49:19 PM

NovaResource

Posts: 415
Joined: 5/29/2005
Status: offline

So an expert mechanic tells you something 2 years ago and a different expert mechanic tells you the same thing 2 years later and you think they are both wrong with the exact same diagnosis? If they are wrong and you know mor than they do, why are you here asking us for an answer? You seem to think you are the expert.

The reason it's running bad now is because you've been driving around for 2 years with the problem without fixing it. The plugs are probably shot now from running lean all that time. Clean or replace the MAF, change the plugs and stop questioning mechanics until you get ASE certified yourself.

Sorry if that sounds rude but I think your name fits you. Are you crazy?

Hope it all works out and welcome to the forum.

< Message edited by NovaResource -- 3/25/2008 7:50:25 PM >

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Octane Truth: Regular or Premium? (Car and Driver Magazine: November 2001)

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Post #: 2

RE: 00 Sonata help please - 3/25/2008 8:22:31 PM

R.U.Krazy

Posts: 3
Joined: 3/25/2008
Status: offline

Thanks for the reply. Sorry, I've had too many bad experiences with dealers and mechanics to believe everything they say. I could tell you a lot of stories, but I don't want to waste your time.
I plan to replace the MAF sensor just to get the light to turn off, or a different engine code to show up, I cleaned it twice with no luck. I'll try the junkyards first. I'll post back here when I get it fixed.

(in reply to NovaResource)

Post #: 3

RE: 00 Sonata help please - 3/26/2008 4:58:10 AM

NovaResource

Posts: 415
Joined: 5/29/2005
Status: offline

Did the dealer ever tell you what codes are in the system? That might help narrow down the problem.

You said you tried cleaning the MAF, how did you do that? And after cleaning the MAF did you have the codes cleared in the system? You should first clean the MAF and then clear the codes. If the codes come back only then would I get a new MAF. Just cleaning the MAF without resetting the computer may not make the code go away. Also, I would change the plugs. If they have been running lean for 2 year they probably need to be changed.

Good luck and hope that helps.

_____________________________

Octane Truth: Regular or Premium? (Car and Driver Magazine: November 2001)

(in reply to R.U.Krazy)

Post #: 4

RE: 00 Sonata help please - 4/1/2008 5:43:44 PM

R.U.Krazy

Posts: 3
Joined: 3/25/2008
Status: offline

Ok, it's fixed, here's what I did. I put one bottle of fuel system cleaner in a half full tank, drove it till the gas was gone and the hesitation was fixed. Then I found a new MAF on ebay for $100.00(dealer wanted $460.00) and I put that on and the engine light is out. Car is running good again.
Thanx for all your help.

(in reply to NovaResource)

Post #: 5

RE: 00 Sonata help please - 4/2/2008 5:05:55 AM

NovaResource

Posts: 415
Joined: 5/29/2005
Status: offline

AWESOME! Great job and nice work saving money with the eBay MAF purchase.

Happy motoring!

_____________________________

Octane Truth: Regular or Premium? (Car and Driver Magazine: November 2001)

(in reply to R.U.Krazy)

Post #: 6