Non warm starter

Canon · 20th August 2013, 13:04

Okay the car starts really easy of a morning or on a cold start.
After driving a while and engine is hot it will not restart, just keeps turning over until battery dies. It will start with a jump start but Ive only tested that when engine has cooled down

So far i have:

Removed cam sensor cleaned and put in freezer to cool down
Replaced diesel fuel filter
Checked battery voltage and tightened connectors
Checked fuel pump is flowing (and got covered in diesel)

All with no luck. Any other suggestions.

Btw when the car is running it doesn't miss a beat

chris_h · 20th August 2013, 13:17

Try starting it using a can of easy start from Halfords. Squirt it through the top of the front grill where the air intake is while someone cranks the engine. If it starts with this it indicates a leak back problem with the injectors. This issue is very common, you can get the injectors refurbished at lynx diesels in Wokingham. The seals perish with age allowing too much fuel to leakback which means the hp fuel rail does not reach the minimum pressure to allow the car to start. The easy start allows the engine to start on the injected easystart which allows the fuel pressure to be raised just high enough for the engine to start. When the engine is warm the seals are softer and allow more fuel to leak back. You can also do a leak back test but this is more involved. I have had this same problem occur on 2 different cars at about 85, 000 miles.

Canon · 20th August 2013, 13:22

Hi Chris

Im going to jump start her again and take her for a run to heat the engine back up. When i get back ill try the easy start and see how it goes

tdi90 · 20th August 2013, 15:51

When you do start it, go for a drive and settle at about 1200 RPM in 3rd 4th or 5th gear then floor it. If it stalls then chances are one/some of ya injectors are leaking back.
(Same thing happened to mine last year)
Injector leak back test is dead easy to do and doesnt take long. make sure you've an empty 2 ltr bottle and a load of old rags handy.

I replied to your wanted thread about borrowing a cam sensor

I have one, pm me.

chris_h · 20th August 2013, 16:36

As the leakback gets worse it starts to cut out when you floor it at low revs as the fuel pressure drops too low and the ecu shuts down the engine. Not much fun when overtaking!

Canon · 20th August 2013, 16:51

Hmm went for a good 15 minute drive and bought a can of easy start then returned home and turned engine off. Restarted after waiting 30ish seconds and it started. Turned back off and waited for 5 minutes, started again. Waited another 5 minutes and again it restarted. It would appear to be okay.
I'll be back out in her later and see what happens then and report back.

I don't have any cut outs or hesitation when i put my foot down, apart from the warm starts over the past couple of days, she has been driving really good.

Alan thanks for your offer, i'll let you know asap

tdi90 · 20th August 2013, 19:26

Quote:

Originally Posted by chris_h

As the leakback gets worse it starts to cut out when you floor it at low revs as the fuel pressure drops too low and the ecu shuts down the engine. Not much fun when overtaking!

Just before I changed my faulty injector, anymore than 1/2 throttle would make it stall. That was royal pain in ....

mrvandango · 22nd August 2013, 19:18

Quote:

Originally Posted by chris_h

As the leakback gets worse it starts to cut out when you floor it at low revs as the fuel pressure drops too low and the ecu shuts down the engine. Not much fun when overtaking!

Hmmm, fitted a ronbox yesterday, and this happened to me on the way back from the gym.. floored it, then felt the engine cut out

No worries after a bump start. I figured I'd set the box up incorrectly, but reading this I guess it has amplified my leak back issues. I could certainly hear an injector ticking louder than usual, which I believe is another indicator.

Easy start has been my saviour recently whilst I squirrel away the pennies to get the injectors refurbed.

20th August 2013, 13:04	#1
Canon Gets stuck in 75 Connie Auto CDTi SE Join Date: Aug 2011 Location: Liverpool Posts: 923 Thanks: 1 Thanked 1 Time in 1 Post	Non warm starter Okay the car starts really easy of a morning or on a cold start. After driving a while and engine is hot it will not restart, just keeps turning over until battery dies. It will start with a jump start but Ive only tested that when engine has cooled down So far i have: Removed cam sensor cleaned and put in freezer to cool down Replaced diesel fuel filter Checked battery voltage and tightened connectors Checked fuel pump is flowing (and got covered in diesel) All with no luck. Any other suggestions. Btw when the car is running it doesn't miss a beat __________________ http://www.the75andztclub.co.uk/foru...1f7d5496b4.jpg Mods done: Towbar - EGR replaced with SS straight pipe - Synergy 2 - Aircon resistor replaced with JMA - Walnut and Leather Steering Wheel - Walnut Hand Brake and Walnut Auto Gear Stick - Walnut Dash - Sean's DD Unit with DVBT - 2.0 CDT Torpedos - Boot Badge and mk1 Chrome Plinth - D Pillars - Union Alloys - X-Power Upgrade Slowly adding pre project bits and bobs

20th August 2013, 13:22	#3
Canon Gets stuck in 75 Connie Auto CDTi SE Join Date: Aug 2011 Location: Liverpool Posts: 923 Thanks: 1 Thanked 1 Time in 1 Post	Hi Chris Im going to jump start her again and take her for a run to heat the engine back up. When i get back ill try the easy start and see how it goes __________________ http://www.the75andztclub.co.uk/foru...1f7d5496b4.jpg Mods done: Towbar - EGR replaced with SS straight pipe - Synergy 2 - Aircon resistor replaced with JMA - Walnut and Leather Steering Wheel - Walnut Hand Brake and Walnut Auto Gear Stick - Walnut Dash - Sean's DD Unit with DVBT - 2.0 CDT Torpedos - Boot Badge and mk1 Chrome Plinth - D Pillars - Union Alloys - X-Power Upgrade Slowly adding pre project bits and bobs

20th August 2013, 15:51	#4
tdi90 Gets stuck in Nissan Navara Join Date: Oct 2011 Location: Wisbech Posts: 875 Thanks: 130 Thanked 98 Times in 76 Posts	When you do start it, go for a drive and settle at about 1200 RPM in 3rd 4th or 5th gear then floor it. If it stalls then chances are one/some of ya injectors are leaking back. (Same thing happened to mine last year) Injector leak back test is dead easy to do and doesnt take long. make sure you've an empty 2 ltr bottle and a load of old rags handy. I replied to your wanted thread about borrowing a cam sensor I have one, pm me. __________________ ZT gone, Range Rover gone. Nissan Navara pick up now

20th August 2013, 16:51	#6
Canon Gets stuck in 75 Connie Auto CDTi SE Join Date: Aug 2011 Location: Liverpool Posts: 923 Thanks: 1 Thanked 1 Time in 1 Post	Hmm went for a good 15 minute drive and bought a can of easy start then returned home and turned engine off. Restarted after waiting 30ish seconds and it started. Turned back off and waited for 5 minutes, started again. Waited another 5 minutes and again it restarted. It would appear to be okay. I'll be back out in her later and see what happens then and report back. I don't have any cut outs or hesitation when i put my foot down, apart from the warm starts over the past couple of days, she has been driving really good. Alan thanks for your offer, i'll let you know asap __________________ http://www.the75andztclub.co.uk/foru...1f7d5496b4.jpg Mods done: Towbar - EGR replaced with SS straight pipe - Synergy 2 - Aircon resistor replaced with JMA - Walnut and Leather Steering Wheel - Walnut Hand Brake and Walnut Auto Gear Stick - Walnut Dash - Sean's DD Unit with DVBT - 2.0 CDT Torpedos - Boot Badge and mk1 Chrome Plinth - D Pillars - Union Alloys - X-Power Upgrade Slowly adding pre project bits and bobs

20th August 2013, 13:17	#2
chris_h Avid contributor rover 75 tourer Join Date: Mar 2008 Location: liphook Posts: 184 Thanks: 0 Thanked 7 Times in 7 Posts	Try starting it using a can of easy start from Halfords. Squirt it through the top of the front grill where the air intake is while someone cranks the engine. If it starts with this it indicates a leak back problem with the injectors. This issue is very common, you can get the injectors refurbished at lynx diesels in Wokingham. The seals perish with age allowing too much fuel to leakback which means the hp fuel rail does not reach the minimum pressure to allow the car to start. The easy start allows the engine to start on the injected easystart which allows the fuel pressure to be raised just high enough for the engine to start. When the engine is warm the seals are softer and allow more fuel to leak back. You can also do a leak back test but this is more involved. I have had this same problem occur on 2 different cars at about 85, 000 miles.

20th August 2013, 16:36	#5
chris_h Avid contributor rover 75 tourer Join Date: Mar 2008 Location: liphook Posts: 184 Thanks: 0 Thanked 7 Times in 7 Posts	As the leakback gets worse it starts to cut out when you floor it at low revs as the fuel pressure drops too low and the ecu shuts down the engine. Not much fun when overtaking!