Google Groups no longer supports new Usenet posts or subscriptions. Historical content remains viewable.
Dismiss
2006 Sonata 4cyl cranks but won't start
252 views
Skip to first unread message
pjp50brass
Jul 8, 2013, 3:17:59 PM7/8/13
to
I have a 2006 Sonata 4cyl with A/T
I have owned the vehicle for three years and currently has 205,000 miles on
it. The situation has only happened 3-4 times since I've owned it.
Occasionally after the car has warmed up and has been running a while,it will
crank but will not start.
The episode lasts about 3-5 minutes, and once it starts, it runs fine.
Sometimes when it cranks it acts like it wants to start,and sometimes it
cranks and there's nothing at all.
The no-starts have been very sporadic, however the last two episodes occurred
a week apart and the last episode lasted over an hour before the car would
start.
The check engine light did come on for a few days during this time,but has
since gone out. I'm not sure if it's related.I plan to have a diagnostic check
done next week.
I also recently experienced a loud rattle on start up, which I understand may
indicate a failing timing chain tensioner. I've been looking at a lot of
forums with people having similar problems, and many suspected reasons center
around the crankshaft and camshaft position sensors. I'm now wondering if the
problem may be related to the engine management system and apparent timing
components wear.
I want to have the job done right, but I'm afraid of the repair shop throwing
a bunch of parts at the car trying to solve the problem. Any help anyone can
share narrowing down the problem would be appreciated.
--
posted from
http://www.motorsforum.com/hyundai/2006-sonata-4cyl-cranks-but-won-t-start-24800-.htm
using MotorsForum's Web, RSS and Social Media Interface to
alt.autos.hyundai and other automotive groups
I have owned the vehicle for three years and currently has 205,000 miles on
it. The situation has only happened 3-4 times since I've owned it.
Occasionally after the car has warmed up and has been running a while,it will
crank but will not start.
The episode lasts about 3-5 minutes, and once it starts, it runs fine.
Sometimes when it cranks it acts like it wants to start,and sometimes it
cranks and there's nothing at all.
The no-starts have been very sporadic, however the last two episodes occurred
a week apart and the last episode lasted over an hour before the car would
start.
The check engine light did come on for a few days during this time,but has
since gone out. I'm not sure if it's related.I plan to have a diagnostic check
done next week.
I also recently experienced a loud rattle on start up, which I understand may
indicate a failing timing chain tensioner. I've been looking at a lot of
forums with people having similar problems, and many suspected reasons center
around the crankshaft and camshaft position sensors. I'm now wondering if the
problem may be related to the engine management system and apparent timing
components wear.
I want to have the job done right, but I'm afraid of the repair shop throwing
a bunch of parts at the car trying to solve the problem. Any help anyone can
share narrowing down the problem would be appreciated.
--
posted from
http://www.motorsforum.com/hyundai/2006-sonata-4cyl-cranks-but-won-t-start-24800-.htm
using MotorsForum's Web, RSS and Social Media Interface to
alt.autos.hyundai and other automotive groups
hyundaitech
Jul 8, 2013, 6:22:09 PM7/8/13
to
The trouble code stored from the check engine lamp is a good place to start. Check for stored codes sooner rather than later. If too long a period passes, the computer may erase the code on its own.
Realistically, there are a large number of possibilities, and without some sort of evidence such as a stored diagnostic trouble code, your ability to find this will probably depend on doing tests while the condition is occurring.
A faulty fuel pump is the most common cause for a crank-no start condition on this vehicle. This is not typically intermittent, however, and usually does not cause a check engine lamp to illuminate.
Number two would be a faulty crank sensor. To my knowledge, a faulty cam sensor will not cause the engine to not start.
In regard to the rattling, the timing chain tensioner issue was a known problem only on the V6 engine, not the four cylinder. That doesn't mean this isn't an issue, but the fact I've never seen nor heard of this issue on the four cylinder engine means it's unlikely. I wonder if one of your catalytic converters has broken apart and is rattling. If the broken piece were to lodge in the exhaust and block it, that would explain both the rattling and the no-start condition. If you have a catalyst efficiency code, you should suspect a broken catalyst is the reason for the rattling and no-start.
Realistically, there are too many options to review them all. Anything I haven't mentioned here is relatively rare. If you want, report back with the trouble code and I'll tell you what I think.
Realistically, there are a large number of possibilities, and without some sort of evidence such as a stored diagnostic trouble code, your ability to find this will probably depend on doing tests while the condition is occurring.
A faulty fuel pump is the most common cause for a crank-no start condition on this vehicle. This is not typically intermittent, however, and usually does not cause a check engine lamp to illuminate.
Number two would be a faulty crank sensor. To my knowledge, a faulty cam sensor will not cause the engine to not start.
In regard to the rattling, the timing chain tensioner issue was a known problem only on the V6 engine, not the four cylinder. That doesn't mean this isn't an issue, but the fact I've never seen nor heard of this issue on the four cylinder engine means it's unlikely. I wonder if one of your catalytic converters has broken apart and is rattling. If the broken piece were to lodge in the exhaust and block it, that would explain both the rattling and the no-start condition. If you have a catalyst efficiency code, you should suspect a broken catalyst is the reason for the rattling and no-start.
Realistically, there are too many options to review them all. Anything I haven't mentioned here is relatively rare. If you want, report back with the trouble code and I'll tell you what I think.
vanessat...@gmail.com
Dec 11, 2016, 12:31:24 AM12/11/16
to
Help
Paul in Houston TX
Dec 11, 2016, 2:13:31 AM12/11/16
to
Ed Pawlowski
Dec 11, 2016, 7:54:55 AM12/11/16
to
On Sat, 10 Dec 2016 21:31:23 -0800 (PST), vanessat...@gmail.com
wrote:
>Help
>
Do you really expect someone to diagnose it from that information? It
would take an hour of typing to give you things to try and to look
for..
Buy a code reader, plug it in and see what it says and go from there.
Or have it towed to a shop.
wrote:
>Help
>
Do you really expect someone to diagnose it from that information? It
would take an hour of typing to give you things to try and to look
for..
Buy a code reader, plug it in and see what it says and go from there.
Or have it towed to a shop.
Paul in Houston TX
Dec 11, 2016, 3:11:22 PM12/11/16
to
Originally posted on July 8, 2013, 6:28 pm, on Motorsforum and
answered by Hyundaitech.
0 new messages