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Engine revs change whilst driving at 80kms? 

 

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john rv
 Post subject: Engine revs change whilst driving at 80kms?
Posted: Thu Jul 15, 2010 7:01 pm 
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Guys

I have an AUIII XR8 auto. When i am travelling at 80km's+ at a steady speed on flat road the engine revs change from 1500 rpm to 1700 rpm every 15-20 seconds. Any idea's suggestions?

Cheers John
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89.SVO
 Post subject: Re: Engine revs change whilst driving at 80kms?
Posted: Thu Jul 15, 2010 7:13 pm 
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sounds like your torque converter is locking and unlocking

 

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cjh
 Post subject: Re: Engine revs change whilst driving at 80kms?
Posted: Thu Jul 15, 2010 7:58 pm 
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WILDEB wrote:
sounds like your torque converter is locking and unlocking


+1

 

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89.SVO
 Post subject: Re: Engine revs change whilst driving at 80kms?
Posted: Thu Jul 15, 2010 9:16 pm 
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are you changing throttle position at all? even ever so slightly.

 

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john rv
 Post subject: Re: Engine revs change whilst driving at 80kms?
Posted: Fri Jul 16, 2010 12:14 pm 
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WILDEB wrote:
are you changing throttle position at all? even ever so slightly.


No change in throttle. Whats involved with getting the torque convertor assesed and fixed. is it a job for a std mechanic?
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Johnson stroker
 Post subject: Re: Engine revs change whilst driving at 80kms?
Posted: Fri Jul 16, 2010 12:53 pm 
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Transmission specialist will need to asses and financially rape you accordingly.

 

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finnigan001
 Post subject: Re: Engine revs change whilst driving at 80kms?
Posted: Fri Jul 16, 2010 1:39 pm 
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dc_todd wrote:
Transmission specialist will need to asses and financially rape you accordingly.


lol!

It's funny coz it's true

 

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finnigan001
 Post subject: Re: Engine revs change whilst driving at 80kms?
Posted: Fri Jul 16, 2010 1:40 pm 
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Stupid double post

 

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XR low springs - Boge Turbo Shocks - Front DBA slotted Rotors - BA ESS shifter - Shift Kit
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john rv
 Post subject: Re: Engine revs change whilst driving at 80kms?
Posted: Mon Jul 19, 2010 1:06 pm 
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dc_todd wrote:
Transmission specialist will need to asses and financially rape you accordingly.


sounds likes an invigorating experience. thanks for the heads up
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Bilko
 Post subject: Re: Engine revs change whilst driving at 80kms?
Posted: Sat Jul 24, 2010 11:31 pm 
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i have something very similar to this!

i will be driving along the freeway at 110 with cruise control on. rpm at its lowest is usually 2000 for me..but sometimes it will be 2200 upto 2400 and then will drop back down?

 

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Sommers NL
 Post subject: Re: Engine revs change whilst driving at 80kms?
Posted: Mon Jul 26, 2010 11:49 am 
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yeah, it does sound like the TC is playing up ... want me to get you a price though work on one??

Laticia.

 

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arm79
 Post subject: Re: Engine revs change whilst driving at 80kms?
Posted: Mon Jul 26, 2010 5:00 pm 
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Maybe first check that the plug and its wires in the side of the transmission is in tight and is clean. My EL did this once, and turns out the plug was just dirty.

Also check the ECU plug is in good condition too with all the wires pushed in firmly...

And that there is continuity between the ECU and trans plug for that solenoid.
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