V50 Engine 2.0D : - Warm/Hot starting problem

nozmeister · Jan 25th, 2008, 19:56

Hi,

I've a 2006 V50 2.0D SE which I'm fairly happy with however it seems to have developed an intermittant fault when starting the engine up which is not fully cold.

If I run the car for a 10 miles or so and then stop, wait an hour or so and then come back to start the car it sometimes takes three to five attempts to start the engine. The engine is always warmed up and it can sometimes happen on 60 mile trip. There are no problems when the car is cold.

Is this EGR valve related? As the fault is intermittant I'm not sure if the garage are going to find this and I don't want to waste my time going there to be told the usual "No fault found".

Any clues appreciated...

Thanks
Noz

Multiplex · Jan 26th, 2008, 20:03

It could be a tricky one to nail this especially if the garage can not reproduce the fault. Try and give the garage as much information as possible as to when the fault occurs and how oftern it does it, ask to speak to the Master Tech directly about the fault.

It may be the EGR valve but it could be many other things aswell.

Hopefully the onboard diagnostics will have stored a code which should make fault tracing easier.

Keep us updated how you go on after it has been looked at.

Feathers69 · May 2nd, 2012, 21:05

Ref my 57 plate V50 2.0 diesel.
I have got the exact same problem, starts perfect from cold, runs fine. Try restarting after say 10 or 15 minutes, and it just won't fire up. Have read various posts and everything seemed to be pointing to the Throttle body/housing which has a flap in it that can stick. Had that replaced today.....same problem occurred after about 15 minutes of driving.

Anyone any ideas?

usa2003husky · Jun 11th, 2012, 14:58

Same problem on my 55 V50. Only does it after long drives (so if the engine is hot) and I stop off somewhere for 15-20 mins then jump back in and start her up, just doesn't fire! Probably should add that if i pump the gas peddle whilst turning it over it seems to kick it into life, only just recently found this out.

Gradually getting worse, as it seems to be struggling to start ona morning more recently. New started motor fitted end of last year so I know its not that.

Any help greatly appreciated.

kebab10 · Jun 11th, 2012, 15:10

I would certainly suspect the Throttle flap. Clean or replace. Do a search and hve a look for how to clean or replace.

cymroboi · Jun 11th, 2012, 21:28

hows about having a read of this post ??
http://www.volvoforums.org.uk/showthread.php?t=77742

might be helpfull

Ninja59 · Jun 13th, 2012, 07:46

throttle flap only the late models had a sensor on the the body to sense the problem and tell the driver earlier ones do not, the problems with the starting esp. for the third guy posting pumping the pedal will probably be opening it enough to make it start properly and the fact codes have not been logged means this is more likely as the throttle flap body unless of the late ones mentioned will not log faults.

Feathers69 · Jun 28th, 2012, 10:44

My V50 has been in 3 times now and still the fault has not been diagnosed.
The Throttle Valve is most peoples obvious choice, but thet has already been changed. Just today, the engine has started racing (after a long journey) and black smoke is billowing out of the exhaust. Time to get rid if I can sell it in this condition !!

SonyVaio · Jun 28th, 2012, 11:26

Quote:

Originally Posted by Feathers69

My V50 has been in 3 times now and still the fault has not been diagnosed.
The Throttle Valve is most peoples obvious choice, but thet has already been changed. Just today, the engine has started racing (after a long journey) and black smoke is billowing out of the exhaust. Time to get rid if I can sell it in this condition !!

When you have changed the TB in the past has this been with brand new Genuine Volvo TB's??

It does sound like TB issue.

Asurath · Apr 5th, 2019, 06:43

Hey,

Sorry to dig up an old topic, but Id really like to know - did you solve your problem? What was the culprit?

I have similar problems with my V50 2.0d DPF EGR (with twin throttle body). Engine starts fine with cold engine. No problems while driving. Idle rpms are perfect. Turbo works good. In the morning there are no issuses with starting. But when I have driven for ~45 minutes and engine has warmed up, reached it normal operating temperatue, then problem occurs. After I shut engine and try to start it in 10 minutes, it just wont start.

Throttle body is oily. One flap moves good (left one), the other one moves badly (right one / car battery side), like its about to stick. The plastic housing where you put two vacuum hoses, is covered with silicone, and vacuum hoses are plugged/blanked with two bolts. Could thttle body be the culprit for my car problems?

Diagnostics showed 0 fault codes.

Jan 25th, 2008, 19:56	#1
nozmeister Member Last Online: Today 19:49 Join Date: Dec 2006 Location: Surrey	Warm/Hot starting problem Hi, I've a 2006 V50 2.0D SE which I'm fairly happy with however it seems to have developed an intermittant fault when starting the engine up which is not fully cold. If I run the car for a 10 miles or so and then stop, wait an hour or so and then come back to start the car it sometimes takes three to five attempts to start the engine. The engine is always warmed up and it can sometimes happen on 60 mile trip. There are no problems when the car is cold. Is this EGR valve related? As the fault is intermittant I'm not sure if the garage are going to find this and I don't want to waste my time going there to be told the usual "No fault found". Any clues appreciated... Thanks Noz

May 2nd, 2012, 21:05	#3
Feathers69 New Member Last Online: Jul 2nd, 2012 16:09 Join Date: May 2012 Location: Rhyl	V50 2.0d 57 plate Ref my 57 plate V50 2.0 diesel. I have got the exact same problem, starts perfect from cold, runs fine. Try restarting after say 10 or 15 minutes, and it just won't fire up. Have read various posts and everything seemed to be pointing to the Throttle body/housing which has a flap in it that can stick. Had that replaced today.....same problem occurred after about 15 minutes of driving. Anyone any ideas?

Apr 5th, 2019, 06:43	#10
Asurath New Member Last Online: Jun 28th, 2019 19:52 Join Date: Apr 2019 Location: Tartu	Hey, Sorry to dig up an old topic, but Id really like to know - did you solve your problem? What was the culprit? I have similar problems with my V50 2.0d DPF EGR (with twin throttle body). Engine starts fine with cold engine. No problems while driving. Idle rpms are perfect. Turbo works good. In the morning there are no issuses with starting. But when I have driven for ~45 minutes and engine has warmed up, reached it normal operating temperatue, then problem occurs. After I shut engine and try to start it in 10 minutes, it just wont start. Throttle body is oily. One flap moves good (left one), the other one moves badly (right one / car battery side), like its about to stick. The plastic housing where you put two vacuum hoses, is covered with silicone, and vacuum hoses are plugged/blanked with two bolts. Could thttle body be the culprit for my car problems? Diagnostics showed 0 fault codes. Last edited by Asurath; Apr 5th, 2019 at 09:01.

Jan 26th, 2008, 20:03	#2
Multiplex Senior Member Last Online: Jan 29th, 2019 22:42 Join Date: Dec 2001 Location: North West	It could be a tricky one to nail this especially if the garage can not reproduce the fault. Try and give the garage as much information as possible as to when the fault occurs and how oftern it does it, ask to speak to the Master Tech directly about the fault. It may be the EGR valve but it could be many other things aswell. Hopefully the onboard diagnostics will have stored a code which should make fault tracing easier. Keep us updated how you go on after it has been looked at.

Jun 11th, 2012, 14:58	#4
usa2003husky New Member Last Online: May 2nd, 2013 11:50 Join Date: Jun 2012 Location: Pontfefract	Same problem on my 55 V50. Only does it after long drives (so if the engine is hot) and I stop off somewhere for 15-20 mins then jump back in and start her up, just doesn't fire! Probably should add that if i pump the gas peddle whilst turning it over it seems to kick it into life, only just recently found this out. Gradually getting worse, as it seems to be struggling to start ona morning more recently. New started motor fitted end of last year so I know its not that. Any help greatly appreciated.

Jun 11th, 2012, 15:10	#5
kebab10 Premier Member Last Online: Jul 24th, 2015 16:09 Join Date: Sep 2008 Location: oxford	I would certainly suspect the Throttle flap. Clean or replace. Do a search and hve a look for how to clean or replace.

Jun 11th, 2012, 21:28	#6
cymroboi Junior Member Last Online: Jan 14th, 2023 08:15 Join Date: Sep 2010 Location: up north wales	hows about having a read of this post ?? http://www.volvoforums.org.uk/showthread.php?t=77742 might be helpfull

Jun 13th, 2012, 07:46	#7
Ninja59 Probably Akita's Toyboy.. Last Online: Dec 27th, 2023 22:24 Join Date: Jul 2010 Location: A House.	throttle flap only the late models had a sensor on the the body to sense the problem and tell the driver earlier ones do not, the problems with the starting esp. for the third guy posting pumping the pedal will probably be opening it enough to make it start properly and the fact codes have not been logged means this is more likely as the throttle flap body unless of the late ones mentioned will not log faults.

Jun 28th, 2012, 10:44	#8
Feathers69 New Member Last Online: Jul 2nd, 2012 16:09 Join Date: May 2012 Location: Rhyl	My V50 has been in 3 times now and still the fault has not been diagnosed. The Throttle Valve is most peoples obvious choice, but thet has already been changed. Just today, the engine has started racing (after a long journey) and black smoke is billowing out of the exhaust. Time to get rid if I can sell it in this condition !!

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