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-   -   2007 Sonata Won't Start (http://www.hyundai-forums.com/181-nf-2006-2010-sonata/118457-2007-sonata-won-t-start.html)

minko2 01-04-2011 11:47 AM

My son has a 2007 hyundai sonata. It wouldn't start (in October) . We took it to a mechanic who said it was the spark plugs. $230.00 ...car still wouldn't start. Then new coils $500.00 still wouldn't start. Finally they said "Inspected fuel delivery circuit and found green power wire to fuel pump was loose in connector". "Vehicle started and ran".

In about a week it started the same thing...wouldn't start in mornings. Didn't take it back to mechanic as feared they were just draining money and not fixing it. Recently, (day after Christmas) he burned out the starter by trying to get it to start. Usually, after turning it over and over, he could get it to start. However, all this wear and tear on the starter wasn't good.

Dealership replaced Starter $400.00. Today, Jan. 03, 2011) after having a new starter installed last week...it won't start again. We are at wits end. I've read this forum but can't find this exact situation, so wondered if anyone has any ideas?

zsonata 01-04-2011 11:51 AM

check engine light?

Byron007 01-04-2011 12:56 PM

What a moronic mechanic. TIPS!!!! If you pull out the coil and try to crank, you should hear a spark and if you hold it to a ground you will see it spark. 2nd, you think they would check for fuel pressure. I'm no mechanic but after watching youtube videos you learn alot of BASICS, I stress that I'm no mechanic and I will take my car in for certain things I just wont do. Check out this vid http://www.youtube.com/watch?v=gOXIyrZwTG4 and other vids in his channel.

minko2 01-04-2011 02:39 PM

QUOTE (zsonata @ Jan 4 2011, 11:51 AM)
Quote:

check engine light?
I didn't previously mention that in August the "mass air flow sensor" went bad and the dealership we took it to was able to diagnose that correctly. At that juncture, yes, the "check engine light" was on.

It has not come on for these most current "won't start" only turns over - issues.

The most recent repair at the dealership was for the starter that burned out. I explained all the past history to the dealership, including the write-up given to me by the mechanic who put in the plugs and coils. They "checked it out and everything was fine". Two days later it won't start again. They want us to bring it back and they'll "look at it again". Supposedly they did check for fuel pressure, lose wires connections to the fuel pump etc.

I mean it's been to them once and they assured us that it was now fine now that the starter was fixed. I told them at the time that the starter only went bad because he kept turning the car over in an attempt to start it. (which eventually it would do.) That the REAL problem seemed to be getting fuel to the engine to get it to ignite and turn over.

Thanks for your post.

zsonata 01-04-2011 03:14 PM

fuel pressure needs to be checked along with injectors ... air, spark and fuel used to ignite... also maybe check some of the fuses just in case

Supernova88642 01-04-2011 03:28 PM

My friend had a similar problem on his Altima after a lot of money and parts replaced, sparkplugs, cam sensor, injector services and so on it ended up being the fuel pump that was going bad sometimes after cranking it a few times it would budge but there came a point that it wouldnít even spraying starter fluid into the intake didnít work and that was usually the last resort to start it, fuel pump was replaced and itís been good since.

ActionMan 01-04-2011 03:53 PM

QUOTE (Supernova88642 @ Jan 4 2011, 01:28 PM)
Quote:

My friend had a similar problem on his Altima after a lot of money and parts replaced, sparkplugs, cam sensor, injector services and so on it ended up being the fuel pump that was going bad sometimes after cranking it a few times it would budge but there came a point that it wouldnít even spraying starter fluid into the intake didnít work and that was usually the last resort to start it, fuel pump was replaced and itís been good since.
If you turn the ignition to On, but not Start, you should hear the hum of the fuel pump for a few seconds then shut off since the car has not been started, make sure radio and fans are off. Having someone stand near the rear of the vehicle while someone turns the ignition key to On can help to hear the hum, but I can hear it without assistance in my vehicle. If you cannot hear any hum at all, good chance that it is the fuel pump.

minko2 01-04-2011 03:54 PM

QUOTE (Supernova88642 @ Jan 4 2011, 03:28 PM)
Quote:

My friend had a similar problem on his Altima after a lot of money and parts replaced, sparkplugs, cam sensor, injector services and so on it ended up being the fuel pump that was going bad sometimes after cranking it a few times it would budge but there came a point that it wouldnít even spraying starter fluid into the intake didnít work and that was usually the last resort to start it, fuel pump was replaced and itís been good since.
Thanks. That's good and bad news because if it is the fuel pump that's even more $$$ that he doesn't have. It really irks me that I had to pay for the plugs and coils. grr

zsonata 01-04-2011 04:14 PM

some people beat on the fuel tank and have someone else start the car.....someone said they tried it on their sonata and it works

Supernova88642 01-04-2011 06:48 PM

I thought the fuel pump was under the back rear cushion i remember on my friends Altima my one mechanically incline friend changed the fuel pump and it took maybe like 15 minutes you remove the rear bench seat and thereís a rubber cap with some screws pull it out unplug some wires and switch them or something along those lines, going with the thought of hitting it couldnít you remove the rear bench seat and hit the top of the pump rather than the side of your car...


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