Engine still running when ignition turned off

Technical questions and answers about the Mazda Bongo

Moderators: Doone, westonwarrior

Post Reply
Zukonezero
Apprentice Bongonaut
Posts: 1
Joined: Mon Dec 09, 2013 12:44 am

Engine still running when ignition turned off

Post by Zukonezero » Mon Dec 09, 2013 12:53 am

Sorry I am new to Bongos so may ask some obvious questions.

We have a 2.5 tdi 1996 bongo. When you turn the ignition off the engine keeps running for about 30 seconds- 1min. After looking online Some say this is a problem with the pump shut off solenoid and others say this is normal for a turbo Diesel engine to allow it to cool.

Any ideas?
teenmal
Supreme Being
Posts: 3656
Joined: Thu Mar 27, 2008 6:08 pm
Location: north lanarkshire

Re: Engine still running when ignition turned off

Post by teenmal » Mon Dec 09, 2013 1:26 am

It could be the shut off valve, it may also have a turbo timer fitted, check the exact time it takes from ignition off to engine off(a couple of times) if its exactly the same it will probably have an activated TT.
francophile1947
Supreme Being
Posts: 11354
Joined: Mon Dec 18, 2006 6:15 pm
Location: Norwich

Re: Engine still running when ignition turned off

Post by francophile1947 » Mon Dec 09, 2013 6:16 pm

Sounds like a turbo timer fitted. Mine had a small box hanging in the driver's footwell, with a switch on it to turn it on or off. Useful after a long motorway thrash, but unnecessary for normal driving.
John
(Evidence that intelligent life exists in the universe, is that it hasn't tried to contact us)
User avatar
Northern Bongolow
Supreme Being
Posts: 7722
Joined: Mon Mar 15, 2010 11:33 pm
Location: AKA Vanessa

Re: Engine still running when ignition turned off

Post by Northern Bongolow » Mon Dec 09, 2013 6:22 pm

keep using it mate, it may help stop your exhaust manifold from warping and snapping the no1 manifold stud.
NathM
Bongonaut
Posts: 43
Joined: Mon Dec 02, 2013 3:52 pm
Location: Guildford,Surrey

Re: Engine still running when ignition turned off

Post by NathM » Tue Dec 10, 2013 1:13 pm

As said, lots of the imports have timers fitted, is there a beep when you turn off the ignition? and if it stays running for 30 seconds EVERY time then its a turbo timer, as Ady said they're quite useful bits of kit and can prolong the life of the turbo etc tho be aware some insurance companies dont like them as they're interfering with the function of the ignition.

Nath
User avatar
Simon Jones
Supreme Being
Posts: 9341
Joined: Mon Aug 29, 2005 3:34 pm
Location: Salisbury (ish), Wiltshire

Re: Engine still running when ignition turned off

Post by Simon Jones » Tue Dec 10, 2013 7:00 pm

Illegal to use with respect to section 123 of the Highway Code:

https://www.gov.uk/general-rules-all-dr ... 117-to-126

As Nath says, may cause insurance issues:

http://www.mdocuk.co.uk/forums/viewtopic.php?t=13182

Unless you're in the habit of stopping and switching the engine off as soon as you come to a halt, then you're not going to save a lot of wear and tear on the turbo (IMHO).
francophile1947
Supreme Being
Posts: 11354
Joined: Mon Dec 18, 2006 6:15 pm
Location: Norwich

Re: Engine still running when ignition turned off

Post by francophile1947 » Tue Dec 10, 2013 9:12 pm

Simon Jones wrote:Illegal to use with respect to section 123 of the Highway Code:

https://www.gov.uk/general-rules-all-dr ... 117-to-126
Only if you get out of the vehicle :wink:
John
(Evidence that intelligent life exists in the universe, is that it hasn't tried to contact us)
User avatar
Simon Jones
Supreme Being
Posts: 9341
Joined: Mon Aug 29, 2005 3:34 pm
Location: Salisbury (ish), Wiltshire

Re: Engine still running when ignition turned off

Post by Simon Jones » Tue Dec 10, 2013 10:36 pm

There is that of course ;).
teenmal
Supreme Being
Posts: 3656
Joined: Thu Mar 27, 2008 6:08 pm
Location: north lanarkshire

Re: Engine still running when ignition turned off

Post by teenmal » Thu Dec 12, 2013 11:03 am

In Scotland it is an offence to have your engine running unnecessarily whilst parked on a public road whether you are in the vehicle or not.

Also in the UK it is Illegal to use a Mobile phone whilst parked on a public road with the engine running, you are deemed by Mr plod as Driving.

All these laws make the TT irrelevant to its intended purpose.

Just a bit of useless information.
Post Reply

Return to “Techie Stuff”