2006 Sonata difficult diagnosis

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2006 Sonata difficult diagnosis

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2006 Sonata difficult diagnosis - 1/22/2008 9:09:53 PM

jenniepage

Posts: 1
Joined: 1/22/2008
Status: offline

My Hyundai dealership service department has been unable to successfully diagnose a serious problem with my car for nearly 5 months and I am in need of help. Occasionally, the car will have mini-seizures (shaking terribly) when I am going uphill, only when I am pressing on the accelerator. It reminds me of popping a clutch the way it jolts the car back and forth. Usually it will happen after I have slowed down behind someone by taking my foot off the gas and then pressing on the gas around 35 to 40 mph. However, at times it will do the same thing after I turn a corner and then try to accelerate coming out of the turn. It happens more after I’ve been driving for longer periods or if it’s warmer. The problem is that no engine light has appeared nor any computer code that will assist the mechanics in diagnosing the problem. Any ideas? Thanks for your help.

Post #: 1

RE: 2006 Sonata difficult diagnosis - 1/23/2008 2:41:51 AM

swivelcel

Posts: 9
Joined: 11/4/2007
Status: offline

Hi.
I had the same misfireing problems on a ford Escort, which was mistifying the garage. It always happend when excellerating or gunning up hill, so I realised it was fuel starvation. So to test for a vacuum in the tank, I loosend the petrol cap; which cured the fault.
Trust this is of help to you.

(in reply to jenniepage)

Post #: 2

RE: 2006 Sonata difficult diagnosis - 1/29/2008 9:56:42 AM

CSULLY123

Posts: 1
Joined: 1/29/2008
Status: offline

Do you know if they had called the Tec Assit line to find if hyundai may have a anser for you? Maybe if you could try another dealer in your area and or make sure that they contact hyundai and see if there is any issues that they may know of.

(in reply to swivelcel)

Post #: 3

RE: 2006 Sonata difficult diagnosis - 1/29/2008 5:57:10 PM

ken99

Posts: 418
Status: offline

quote:

I loosend the petrol cap; which cured the fault.

If you try this, be aware that your "check engine" will eventually come on. Usually shutting the engine off, tighening the cap back up and restarting solves that issue.

I suggest you do try this. If swivelcel's advice does solve the problem, take the car back to the dealer and tell them the problem is related to a plugged fuel tank vent line or malfunctioning ventilation valve that is part of the gasoline vapor recovery system.

(in reply to jenniepage)

Post #: 4

RE: 2006 Sonata difficult diagnosis - 1/30/2008 7:48:27 AM

Doohickie