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Why Why Why Limp Home Mode??? 

 

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 Post subject: Why Why Why Limp Home Mode???
Posted: Thu Sep 08, 2011 10:30 pm 
Tyre Shredder
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Age: 42

Posts: 368

Joined: 22nd Aug 2008

Ride: 2002 AUII Fairlane Sportsman V8

Location: Roxby Downs
SA, Australia

Done a major service on the car... (EF Fairmont Ghia '96)

Front/Rear Seals
Harmonic Balancer
Front/Rear Transmision Seals
Trans Filter & Gasket Kit
Emptied All The Old Trans Fluid inc. Torque Converter, radiator & Lines
Flushed Engine With Liqui-Moly Engine Detox
Flushed Cooling System
New Overflow Header Tank
Reco'ed Injectors (Flow Tested etc)
New Fuel/Oil Filter
Fresh Engine Oil
Fresh Trans Fluid

Anyhow set up everything back to normal & yes i double/triple checked everything to make sure it was all hunky dory. Everything 10000% OK.

Start the car & take it for a test drive (mind you battery has been disconnected for around 1 or 2 weeks since car was sitting on stands & ramps so i had to charge the battery up to get it to crank).

For about 4 hours or so car was driving/using 3rd gear ONLY!!!

I then realised i was in "Limp Mode".

WTF Mate i'm asking myself. Could NOT work this out as everything was checked/tested 10000%

Anyhow after cracking the s**t & driving & turning off the vehicle a few times it started to use the gears again.

Can anyone shed some light as to why the vehicle went into limp mode???


thx
Shen
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 Post subject: Re: Why Why Why Limp Home Mode???
Posted: Thu Sep 08, 2011 10:37 pm 
Stock as a Rock
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Joined: 27th Jun 2008

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Ride: EF 2 Fairmont. AU 5 Litre ute

Location: Berwick
VIC, Australia

i know sometimes when you disconnect the battery or when its goin flat it goes into limp mode
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 Post subject: Re: Why Why Why Limp Home Mode???
Posted: Thu Sep 08, 2011 10:52 pm 
Getting Side Ways
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Age: 37

Posts: 907

Joined: 13th Jul 2005

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Ride: ef futura/ef fairmont

Location: sydney
NSW, Australia

also sometimes not enough trans fluid

 

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ANZ mayhem 18's,custom interior,venom body kit,xr wing,jumbo 2' low springs
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 Post subject: Re: Why Why Why Limp Home Mode???
Posted: Fri Sep 09, 2011 1:09 am 
Tyre Shredder
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Age: 42

Posts: 368

Joined: 22nd Aug 2008

Ride: 2002 AUII Fairlane Sportsman V8

Location: Roxby Downs
SA, Australia

green machine wrote:
also sometimes not enough trans fluid

yes i thought it was that too, however i filled up the trans fluid 3 times round.

1st time the torque converter chewed up quite a bit as it was only 1/4 - 1/2 full when i put it in the auto & also the radiator & lines would have emptied the auto a little as well since i drained them too.

2nd time round i refilled the auto after idling the vehicle for around 15 - 20 mins. I noticed that when i put the car into drive (car up on ramps & stands) it wouldn't show any speedo action until i reved her up to around 4 - 5 thousand revs. This was a good indication that there was NOT enough fluid.

3rd time round i refilled the auto again only this time i dropped the vehicle & only jacked up 1 side so that i could fill the auto up & give her a little extra (I know too much is not a good thing either). But i was going under the assumption that the ground was NOT level & that's why i was getting false FULL levels.

Anyhow after 3rd time round the car was going into gear correctly etc but only going into 3rd from take off to what ever speed i practically wanted (up to 160 or so i think).

This went on for around a good 50 or 60 KM's until i was going home & got fed up, so i turned the car off as i was on the highway doing 110KM's put her in neutral let the car stall & then started her up again. After that i got all the gears to work miraculously.

Anyhow now i have 1 more issue, the head is leaking a s**t load of oil (yup the head) not the rocker cover gasket & not the damn oil pressure switch (as i was really hoping for) - but the friggin head :( GRRRRRRRRRRRRRR
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 Post subject: Re: Why Why Why Limp Home Mode???
Posted: Fri Sep 09, 2011 9:57 am 
Getting Side Ways
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Age: 37

Posts: 907

Joined: 13th Jul 2005

Gallery: 10 images

Ride: ef futura/ef fairmont

Location: sydney
NSW, Australia

mate i had that issue with mine after the engine install and different box went in! Every time i droped it into gear it would limp, use to go into limp 3 times then finally went all gears every day then i gave her a good drive along the highway for a couple of hours and now she behaves normal, so the long drive cleared her up..

Mate thats sucks about the head!! had that happin to me before to doing a head gasket on my girlfriends father's xh, ended up being a bad gasket we put on did it a second time with a different gasket and all is good..

 

_________________

custom airbox,custom intake
paccie comps,lukey 2.5 cat back,high flow cat
CMS stg2 head,CMS stg2.A. cam,CMS hybrid auto with mod shift,3.9 lsd
custom 3500rpm hi stall
ANZ mayhem 18's,custom interior,venom body kit,xr wing,jumbo 2' low springs
143rwkw and 407rwnm on CMS dyno

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 Post subject: Re: Why Why Why Limp Home Mode???
Posted: Sat Sep 10, 2011 5:54 pm 
Tyre Shredder
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Age: 42

Posts: 368

Joined: 22nd Aug 2008

Ride: 2002 AUII Fairlane Sportsman V8

Location: Roxby Downs
SA, Australia

Drove from Roxby Downs Sth Aust. to Melbourne & the engine consumed (leaked) around 10Litres of oil. Talk about leaving bread crumbs behind LOL.

The head should be coming off sometime this week & i will install a tickford head that i have lying around (just a good excuse really).

Anything to look out for? Haven't installed a head for quite sometime now.
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