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transmission problem / limp mode 

 

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 Post subject: transmission problem / limp mode
Posted: Wed Apr 25, 2007 2:47 pm 
Oompa Loompa
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hey guys , i just wanted some help with what appears to be a transmission problem .. the car is stuck in 3rd gear , its a 4 speed auto , iv been told the car is in limp mode , just wanting another opinion , thks alot
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Posted: Wed Apr 25, 2007 7:25 pm 
Parts Gopher
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Yes that's limp home mode, you will have to scan for codes to find out what has gone wrong.
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Posted: Wed Apr 25, 2007 7:40 pm 
Smokin em up
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does the speedo work ? there is a relay for the trans that plays up too. what sort of car is it ?

 

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Posted: Wed Apr 25, 2007 9:35 pm 
Oompa Loompa
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yes , the speedo works , its an EF XR6
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Posted: Thu Apr 26, 2007 4:14 pm 
Getting Side Ways
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No point guessing what the reason for it going into limp mode. As soon as you can have a diagnostic ran to find the fault code. Leaving it too long will only damage the trans further (eg. burning the fluid and blocking more soleniods/burning out clutches&bands) I had to replace S1 (shift soleniod) on mine a while back as it was going intermitent into limp mode.
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Posted: Thu Apr 26, 2007 8:44 pm 
Smokin em up
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hey dude. this exact problem happened to my car last xmas. EBII 6. its in limp mode and you probably need a new Oil Pressure Solenoid.

Its a part in your auto box. and what it does is each time your auto changes gear, this solenoid decides how much oil needs to be sent through the auto inorder for it to change gear. And if this is inactive, which in your case it is. Then your car wont change gear.

It cost me 450 to get that done and serviced :)
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Posted: Thu Apr 26, 2007 8:45 pm 
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But yeh and to find out that exact problem, i got the ecu scanned n s**t n that cost 30 itself!!!
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Posted: Fri Apr 27, 2007 7:41 am 
Getting Side Ways
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$30 well spent if you replace the wrong part and still not fixed!
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Posted: Fri Apr 27, 2007 4:40 pm 
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it happened in my EF, took to an auto guy, and it was the salector switch on the side of the box, plus a seal had gone, also if you let it go it will clog up your comp, mine was a dog when it happened, 50 bucks and she was sweet
Acidic

 

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Posted: Sat Apr 28, 2007 12:07 am 
Oompa Loompa
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i ran a diagnostic check on it yesterday , 6 codes came up : tansmission solonoids 5 and 2 were fualty , it failed its high and low idle test ( which i think is a MAP sensor or an injector problem ) , the power steering sensor , and the throttle position sensor , the TPS has was replaced 2 months ago for this same problem and fixed it up until recently , i checked all the voltages at the TPS and then pulled out the ECU and checked all the voltages there , all are within specs , so im ruling out the TPS sensor , i dont know much about the ford gearboxes , so do any of you think that it is those 2 transmission solonoids doing it ?
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Posted: Sat Apr 28, 2007 7:18 am 
Getting Side Ways
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Spanaid i would delete the current fault codes as some may be old ones, take it for a drive (hoping it goes into limp mode) and this will give you the newest fault codes.
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Posted: Sat Apr 28, 2007 11:05 pm 
Oompa Loompa
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good idea , thanks for your help , hopfully il have it sorted soon , thanks again eveyone
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Posted: Sun Apr 29, 2007 3:31 pm 
Parts Gopher
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have you checked the condition of your battery?
cos 90% of the time when a vehicle goes in limp mode its cos the battery is dead or on its way out. so grab a multimeter and check your cold cranking amps.very common problem
having a faulty S2 solenoid with just make the tranny thump into gears simaler to a shift kit.
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Posted: Sun Apr 29, 2007 4:02 pm 
Oompa Loompa
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I had a similar problem with my EL XR8 it would intermittently drop in and out off limp mode turned out to be a loose earth strap.

 

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Posted: Sun Apr 29, 2007 9:47 pm 
Parts Gopher
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{USERNAME} wrote:
have you checked the condition of your battery?
cos 90% of the time when a vehicle goes in limp mode its cos the battery is dead or on its way out. so grab a multimeter and check your cold cranking amps.very common problem
having a faulty S2 solenoid with just make the tranny thump into gears simaler to a shift kit.



Can you explain how you would check CCA with a mulitmeter????????
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