Omega Owners Forum
Omega Help Area => Omega General Help => Topic started by: omegalover on 30 November 2009, 23:17:22
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Hi, just purchased a omega 2.6 cdx auto 03 reg. it is driving me nuts. it a 2 main faults, one has diagonesd as the crankshaft sensor, however the 2nd one is the auto gearbox, when the car is cold,th car changes and drives fine, however as soon as the car warms up, the box seems to slip when stationary in driive mode to neutral. When shift from netral to drive, it takes a few seconds for it to engage and creep unless you rev it, then it jolts forward. if you leave it in drive with your foot on the brake, you can feel it engaging and disengaging.However the car drives fine and changes thru the gears once driving.
My Vauxhall main dealer has done a diagnostic check and has found no fault codes with the gearbox. They think the crankshaft sensor fault is probably impacting on the gearbox..can this be true? Also how much should I expect to pay for a replacment crankshaft sensor fitted? Thanks guys
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crank sensor can throw other codes, but it would not affect the gearbox. Crank sensor failing will cause the engine to die, and be difficult to restart.
I would check the ATF level on the gearbox :y
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What he says ^^^ check ATF level, guide in maintanence section :y Might not be any codes showing but could be worth a gearbox software update on a tech 2 :)
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Gearbox does rely on RPM signal which is crank sensor related but more likely to be low fluid level IMHO. If the mileage is over 60K or so and there's no history of an automatic gearbox fluid change I would change the fluid, TBH.
Crank sensor needs changing ASAP as they tend to leave you standing once they fail completely so change that first before condemning the gearbox.
Guides for both of these jobs in the maintenance section. :y
Kevin
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Thanks very much guys for the advice, The car was plugged into the tech 2 by the vauxhall garage and it didnt show any codes...will the Tech 2 diagnostic have picked up a low ATF? Also prior to going into my local delaership, a local garage had informed me that the transmission fluid can only be checked or topped up while the car is connected to the tech 2..is this true?
Many thanks for the comments folks. :y
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Thanks very much guys for the advice, The car was plugged into the tech 2 by the vauxhall garage and it didnt show any codes...will the Tech 2 diagnostic have picked up a low ATF? Also prior to going into my local delaership, a local garage had informed me that the transmission fluid can only be checked or topped up while the car is connected to the tech 2..is this true?
Many thanks for the comments folks. :y
Your local garage is talking crap, only tool needed to check the fluid level is a spanner.
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Thanks very much guys for the advice, The car was plugged into the tech 2 by the vauxhall garage and it didnt show any codes...will the Tech 2 diagnostic have picked up a low ATF? Also prior to going into my local delaership, a local garage had informed me that the transmission fluid can only be checked or topped up while the car is connected to the tech 2..is this true?
Many thanks for the comments folks. :y
Your local garage is talking crap, only tool needed to check the fluid level is a spanner.
And of course a Gnome helps ;D ;D ;D ;D
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Thanks very much guys for the advice, The car was plugged into the tech 2 by the vauxhall garage and it didnt show any codes...will the Tech 2 diagnostic have picked up a low ATF? Also prior to going into my local delaership, a local garage had informed me that the transmission fluid can only be checked or topped up while the car is connected to the tech 2..is this true?
Many thanks for the comments folks. :y
Some manufacturers (VW for example) specify that the engine should be running and the fluid at 50 degC.
Is Tech2 able to monitor the fluid temperature?
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Thanks very much guys for the advice, The car was plugged into the tech 2 by the vauxhall garage and it didnt show any codes...will the Tech 2 diagnostic have picked up a low ATF? Also prior to going into my local delaership, a local garage had informed me that the transmission fluid can only be checked or topped up while the car is connected to the tech 2..is this true?
Many thanks for the comments folks. :y
Some manufacturers (VW for example) specify that the engine should be running and the fluid at 50 degC.
Is Tech2 able to monitor the fluid temperature?
Can monitor other temps, but not ATF
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IM sure the box temp is reported in live data....
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IM sure the box temp is reported in live data....
don't remember seeing it when flicking through :-/ But could well be wrong ;D
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Ive an export of live data on my other PC....but cant get at it at the mo...
Ill post up what is reported later.
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Here's how to check the autobox oil level....
http://www.omegaowners.com/forum/YaBB.pl?num=1152783586
:y
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IM sure the box temp is reported in live data....
Correct. However, I wouldn't regard it as critical to know the temperature! Take the car out for a brisk drive for 10 minutes and it'll be fine.
It is, however, most important that the engine is left running throughout the procedure and the car is level.
If necessary, jack up the driver's side to gain access to the level plug, add a little fluid and then lower the car to level and ensure that some drains out. If not, add a little more. Then jack up again to replace the plug. If the engine is stopped at any point while the plug is out, the fluid that's circulating in the system will pour out.
Kevin
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.. and how was the crank sensor diagnosed if there were no fault codes reported? It almost always raises a fault code in the engine ECU. :-/
Kevin
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Gearbox oil temp is reported via tech2.
And the lack of an accurate rpm signal can affect the gearbox as it is reliant on this information so it can know the torque convertor input speed so it would cause strange operation.
What I dont know is how tolerant the 2.6/3.2 ecu setup is to an in-accurate rpm signal (clearly the 2.5 and 3.0 are not very tolerant of this).
So, 2 things to do.
1) Check the gearbox fluid level
2) Change the crank sensor
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Thanks guys, well my vauxhall dealership who now have the car as it died while I popped in to see them and wouldnt start possibly due to the crankshaft sensor have now quoted me £200 plus vat to replace the sensor..ouch.!! :'( I am now in a catch 22 situation as the car is non starter until sensor replaced, they cannot do a tech 2 diagnostic check.
Does £200 sound too expensive to have the sensor replaced? :'(
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Thanks guys, well my vauxhall dealership who now have the car as it died while I popped in to see them and wouldnt start possibly due to the crankshaft sensor have now quoted me £200 plus vat to replace the sensor..ouch.!! :'( I am now in a catch 22 situation as the car is non starter until sensor replaced, they cannot do a tech 2 diagnostic check.
Does £200 sound too expensive to have the sensor replaced? :'(
Sensor is £53.50 & vat retail, and 0.7 hours labour to change so unless they're charging £200 an hour for labour I'd say they're taking the Michael.
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they cannot do a tech 2 diagnostic check.
Can't think why, apart from the obvious. As long as the car has power, all they need to do is plug in a Tech 2.
They often come back to life when they have cooled off so go back and give it a spin. Otherwise, I would be visiting their parts department with a trade card and fitting it myself on the forecourt.
Kevin
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Kevin,in your previous post you say refer to maintenance section "to change ATF fluid" I can only find info to "check level" is this info anywhere on the forum? I can't find a drain plug so is it feasable to drop the sump?
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Kevin,in your previous post you say refer to maintenance section "to change ATF fluid" I can only find info to "check level" is this info anywhere on the forum? I can't find a drain plug so is it feasable to drop the sump?
The only way to do it properly is to drop both sumps off the gearbox.
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OK Thanks Captain, I thought so. No doubt will need new gaskets, do you know of anything else apart from the obvious? ::)
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OK Thanks Captain, I thought so. No doubt will need new gaskets, do you know of anything else apart from the obvious? ::)
Gearbox filter or you could rinse the old one out.
Jpat supply the gaskets & filters at a discount to members see this post
http://www.omegaowners.com/forum/YaBB.pl?num=1223285402
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So there's a filter :-? I'll replace it to play safe and get Vx parts. Hopefully @ trade through a friend. I take it Jpat parts are made to pattern, never had much luck with after market parts. I hope to be doing the job next week. Will post up how I go on.Thanks for the info it's much appreciated :y :y
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So there's a filter :-? I'll replace it to play safe and get Vx parts. Hopefully @ trade through a friend. I take it Jpat parts are made to pattern, never had much luck with after market parts. I hope to be doing the job next week. Will post up how I go on.Thanks for the info it's much appreciated :y :y
VX are VERY expensive for those bits....Jpat are fine I would get quotes from both (dont forget the OOF Jpat discount) :y
Ive used Jpat or the bloke from the back of the ABS magazine, both parts have been spot on.
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as promised....what diags return...
not from tech2, but I guess a similar list
Emergency Mode Inactive
Selected Mode Economy Program
System Voltage 13.8 V
Internal Power Control Final Stage Active
Brake Light Switch Inactive 0V
Sport Program Switch Inactive 12V
Sport Program Indicator Economy 12V
Winter Program Switch Inactive 12V
Winter Program Indicator Econ./Sport 12V
Kickdown Switch Inactive 12V
A/C Information Switch (Air Conditioning) Active 12V
Selector Position -P-
Terminal A Selector Position Switch Active 12V
Terminal B Selector Position Switch Inactive 0V
Terminal C Selector Position Switch Inactive 0V
Terminal G Selector Position Switch Active 12V
Park/Neutral Signal P - N 0V
Engine Speed 1.248 RPM
Coolant Temperature Signal < 40 °C
TPS Load Signal (Throttle Position Sensor) 8%
Pressure Regulator Solenoid Valve 449 mA
Calculated Pressure 8.5 bar
1-2/3-4 Shift Solenoid Valve Inactive 12V
2-3 Shift Solenoid Valve Active 0V
Band Apply Solenoid Valve 51%
TCC Solenoid (Torque Converter Clutch) Inactive 12V
AT Output Speed (Automatic Transmission) 0 RPM
AT Oil Temperature (Automatic Transmission) 15 °C
AT Oil Temperature (Automatic Transmission) 3.76 V
Torque Control Signal Inactive
Desired Torque Control 0%
Actual Gear -1-
Transmission Ratio 9%
Ignition / Injection Cutoff 89%
Malfunction Indication Inactive 12V