Auto inhibertor switch ?

crazy frog · 9th February 2017, 22:08

For the last few mornings have had trouble cranking engine on the key. Nothing not even a click,in a panic I phoned a taxi I because I couldn't be late for an appointment .
First thought was flat flat battery but all ancillaries and webasto were working.I checked the voltage on the dash 19/9. And ok 11.7 volts so scratching my head I moved to neural and tried again ,no joy,any way repeated gear selector movement a few times finally started crisply in park.(cancelled taxi )
Now the only thing I can think of is a recent handbrake compensator mod (belated thanks to Arctic) which involved the jacking up and wooden prop of the rear of the armrest cubby and central trim .
I'm wondering if the leverage at the gear lever/dash end has loosened something ? Is the inhibertor for an auto in this area ? Before I start taking apart .The funny thing is once its started Ive never had a problem stopping and restarting . I have two drives one flat for work and visitors the other where I park nose up is about 25° up.
Any suggestions appreciated.Thankyou Paul.
P.s bumped into another ZT driver today so we may have another member on the horizon.

klarzy · 9th February 2017, 22:16

11.7 is quite low.... 12.4 plus is better....

If it went start in park then try neutral ...

Avulon · 9th February 2017, 23:00

Battery below 12v is discharged ...

I've read that the Auto's only start the engine when 'P' Park is selected.

clf · 9th February 2017, 23:16

Quote:

Originally Posted by Avulon

I've read that the Auto's only start the engine when 'P' Park is selected.

will start in Neutral also.

Could try leaning on the gear selector (forward or back) whilst in Park to see if it will start. Also slide the selector up and down from P to 2 and back again, to see if this helps. (Have not experienced this, but read on this forum) Have also read too, that the car will start in Neutral, but not in Park.

Battery does sound low, also, as mentioned, did the headlights flash as you tried to start? (they are supposed to flash when the battery is too low to start - although it didnt happen to mine when my battery drained)

Dragrad · 9th February 2017, 23:57

Thread moved to a more appropriate forum. Re-direct left in old. This may be the better forum as threads get ‘lost’ very quickly in the General Forum.

crazy frog · 10th February 2017, 00:18

Thank you for this ,when I park up and turned off it is about 12.4. When running /charging it shows about 14.5 .only doing short journeys 2=3 miles and when turned off because of the cold tempretures outside my webasto which starts automatically when cold some times carries on pumping for a minute or two.especially with the diesel which we all know runs cooler than other engines.
Battery has a little inspection window green is fully charged ,I know this is only an indication.. Do you think a off car full charge and then a solar trickle charge would help ?
However I'm still puzzled that initially there is absolutely no noise no movement no dimming of interior lights and the webasto is firing up and after jiggling the gear lever including glow plugs it fires up without any labour instantly ,then I can turn off lmmediatly with no chance of a charge and it fires up instantly again with no labour .
I did try it in neutral as in my first post.
Just doesn't make sense to me how one minute it doesn't have the power to start then 30 seconds later after the webasto drawing it even more,it then after further glow plug draw fires up instantly ?
Thanks Paul .

Phil-T4 · 10th February 2017, 06:13

Starter motor may need its solenoid contacts replacing.

David Lawrence · 10th February 2017, 07:04

Quote:

Originally Posted by crazy frog

For the last few mornings have had trouble cranking engine on the key. Nothing not even a click,in a panic I phoned a taxi I because I couldn't be late for an appointment .
First thought was flat flat battery but all ancillaries and webasto were working.I checked the voltage on the dash 19/9. And ok 11.7 volts so scratching my head I moved to neural and tried again ,no joy,any way repeated gear selector movement a few times finally started crisply in park.(cancelled taxi )
Now the only thing I can think of is a recent handbrake compensator mod (belated thanks to Arctic) which involved the jacking up and wooden prop of the rear of the armrest cubby and central trim .
I'm wondering if the leverage at the gear lever/dash end has loosened something ? Is the inhibertor for an auto in this area ? Before I start taking apart .The funny thing is once its started Ive never had a problem stopping and restarting . I have two drives one flat for work and visitors the other where I park nose up is about 25° up.
Any suggestions appreciated.Thankyou Paul.
P.s bumped into another ZT driver today so we may have another member on the horizon.

Im quite interested in this thread for the opposite reason that my auto will start in any gear and it shouldnt. Have asked about it on here before but have no idea where to start looking.

Phil-T4 · 10th February 2017, 07:07

Quote:

Originally Posted by David Lawrence

Im quite interested in this thread for the opposite reason that my auto will start in any gear and it shouldnt. Have asked about it on here before but have no idea where to start looking.

I have seen this before when the ecu set has been replaced with one from a manual, whip the ecu out and check the number on it, if it is NNN100692 its from a manual, if it is NNN100720 then its the correct one.

marinabrian · 10th February 2017, 16:34

Quote:

Originally Posted by Phil-T4

I have seen this before when the ecu set has been replaced with one from a manual, whip the ecu out and check the number on it, if it is NNN100692 its from a manual, if it is NNN100720 then its the correct one.

I've seen this on more than one or two occasions also, and not just on the earlier ECM, but on NNN500340 with a manual ECM "set" fitted to an automatic

As they say, a little knowledge can be a dangerous thing, yes the car will start and run, but not well when the ECM not talking to the gearbox ECU

Brian

9th February 2017, 22:08	#1
crazy frog Avid contributor MG ZTT Cdti 135 + Auto Join Date: Jan 2007 Location: Manchester Posts: 244 Thanks: 89 Thanked 63 Times in 29 Posts	Auto inhibertor switch ? For the last few mornings have had trouble cranking engine on the key. Nothing not even a click,in a panic I phoned a taxi I because I couldn't be late for an appointment . First thought was flat flat battery but all ancillaries and webasto were working.I checked the voltage on the dash 19/9. And ok 11.7 volts so scratching my head I moved to neural and tried again ,no joy,any way repeated gear selector movement a few times finally started crisply in park.(cancelled taxi ) Now the only thing I can think of is a recent handbrake compensator mod (belated thanks to Arctic) which involved the jacking up and wooden prop of the rear of the armrest cubby and central trim . I'm wondering if the leverage at the gear lever/dash end has loosened something ? Is the inhibertor for an auto in this area ? Before I start taking apart .The funny thing is once its started Ive never had a problem stopping and restarting . I have two drives one flat for work and visitors the other where I park nose up is about 25° up. Any suggestions appreciated.Thankyou Paul. P.s bumped into another ZT driver today so we may have another member on the horizon.

9th February 2017, 22:16	#2
klarzy This is my second home none but not gone Join Date: Mar 2013 Location: March, Cambs Posts: 16,437 Thanks: 894 Thanked 4,247 Times in 3,025 Posts	11.7 is quite low.... 12.4 plus is better.... If it went start in park then try neutral ... __________________ [SIGPIC][/SIGPIC]….All praise Bananaswan….

9th February 2017, 23:00	#3
Avulon This is my second home 1.8t Tourer Join Date: Oct 2011 Location: Tanelorn Posts: 4,830 Thanks: 956 Thanked 1,148 Times in 916 Posts	Battery below 12v is discharged ... I've read that the Auto's only start the engine when 'P' Park is selected. __________________ Need a T4 ?: T4 Owners Map thanks to Stevestrat ( use at your own risk) Where?: https://en.wikipedia.org/wiki/Tanelorn Mods/Retrofits: PCV vortex 'filter'; bluetooth; inline thermostat; reversing sensors; plenum spyhole ; headlamp washers ; Diy mp3 player replacing CD multichanger; FBH with remote; Headlamp washers; black/chrome front grille, rear blind; Xenon projectors To do: puddle lights; 2 Din cd/nav to fit; boot release button

9th February 2017, 23:57	#5
Dragrad This is my second home *None DROWNED** Join Date: Aug 2007 Location: Cardigan Posts: 33,339 Thanks: 1,257 Thanked 1,664 Times in 1,081 Posts	Thread moved to a more appropriate forum. Re-direct left in old. This may be the better forum as threads get ‘lost’ very quickly in the General Forum. __________________ Andrew Ich Dien Problem solving is... lateral thinking SEARCH FIRST ...ASK LATER...

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10th February 2017, 00:18	#6
crazy frog Avid contributor MG ZTT Cdti 135 + Auto Join Date: Jan 2007 Location: Manchester Posts: 244 Thanks: 89 Thanked 63 Times in 29 Posts	Thank you for this ,when I park up and turned off it is about 12.4. When running /charging it shows about 14.5 .only doing short journeys 2=3 miles and when turned off because of the cold tempretures outside my webasto which starts automatically when cold some times carries on pumping for a minute or two.especially with the diesel which we all know runs cooler than other engines. Battery has a little inspection window green is fully charged ,I know this is only an indication.. Do you think a off car full charge and then a solar trickle charge would help ? However I'm still puzzled that initially there is absolutely no noise no movement no dimming of interior lights and the webasto is firing up and after jiggling the gear lever including glow plugs it fires up without any labour instantly ,then I can turn off lmmediatly with no chance of a charge and it fires up instantly again with no labour . I did try it in neutral as in my first post. Just doesn't make sense to me how one minute it doesn't have the power to start then 30 seconds later after the webasto drawing it even more,it then after further glow plug draw fires up instantly ? Thanks Paul .

10th February 2017, 06:13	#7
Phil-T4 I really should get out more....... MG ZT-T, Rover 75 Tourer Join Date: Mar 2011 Location: Olney Posts: 2,969 Thanks: 245 Thanked 1,088 Times in 657 Posts	Starter motor may need its solenoid contacts replacing.