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7th December 2021, 08:52 AM
#1
Auto won't kick down up hill
When going up hills the Auto (2001 GU) does not kick back to 3rd even if the accelerator is fully depressed. Taking my foot off the accelerator and then putting it down again, the auto will select 3rd hitting about 2500 RPM but always then changes to 4th about 2-3 seconds later. I have tried playing with O/D both on and off and also the A/T Hold Power Switch without success. Not sure what I need to check, Auto or ECU or something else?
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7th December 2021 08:52 AM
# ADS
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7th December 2021, 01:10 PM
#2
Expert
Not sure if it's fluid related but how long since the tranny was serviced?
Perhaps a blockage in the valve body?
2008 CRD Auto Wagon
Factory snorkel, flashlube catchcan pro, 3" manta exhaust, hpd boost controller, dyno-tuned & egr deleted
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7th December 2021, 05:53 PM
#3
These transmissions are not very smart and tend to avoid downshifting until most power is lost.
I have always found it easiest to drive in manual mode when this becomes an issue
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7th December 2021, 06:26 PM
#4
How do you Drive manual in 3rd?
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7th December 2021, 10:36 PM
#5
Patrol God
Originally Posted by
stricky
How do you Drive manual in 3rd?
Put it in the 3,just below the D
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8th December 2021, 12:25 AM
#6
Expert
or hit the O/D button if it has one
2008 CRD Auto Wagon
Factory snorkel, flashlube catchcan pro, 3" manta exhaust, hpd boost controller, dyno-tuned & egr deleted
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8th December 2021, 07:39 AM
#7
The auto only has 1st & 2nd manual gear options. I was doing some more investigation, is it possible the Throttle Position Sensor is the problem? I am not sure as the problem mostly occurs up hills.
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9th December 2021, 11:30 AM
#8
Expert
Do you have an O/D button on the stick under ya thumb (under the other big button)?
2008 CRD Auto Wagon
Factory snorkel, flashlube catchcan pro, 3" manta exhaust, hpd boost controller, dyno-tuned & egr deleted
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9th December 2021, 09:54 PM
#9
Yes, I have an O/D button. But I do not understand what it has to do with my problem.
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10th December 2021, 11:50 PM
#10
Patrol God
Take the overdrive off..stick in 2nd or 1st...drive it like ya stole it...
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