G

Gary neath

New Member

• Jan 13, 2011

• #1

Hi, i am new to the forum and was wondering if anyone can help with my P38 (Auto)
The problem i am having is the engine will change up and down the gears for no reason when driving along the road at steady pace.
Driving at a steady pace say 50 mph the gears will drop down to the lower gears with the engin reving very high and then back up to the high gears and then back down.This is doing this about every ten minutes and lasts about ten seconds.I have been told this maybe a gearbox problem but i just dont know.
Has anyone had this problem before,i would be very grateful for any advice.

thanks

Gary

 

JamesBB

Active Member

• Jan 13, 2011

• #2

:welcome2:

Check the auto transmission fluid, it may be low.
Check the colour of it too, should be pink/redish, not brown.

Good luck

 

J

JohnP38

Active Member

• Jan 13, 2011

• #3

Make sure all the electrical connectors to the autobox are firmly made and clean.ie no corrosion/oil contamination etc

 

j the range

New Member

• Jan 14, 2011

• #4

gearbox ecu, need looking into..

 

R

Ridesafe

New Member

• Jan 14, 2011

• #5

Check auto fluid when cold. Open bonnet, start engine. Move selector from P down to 1 and back again, leave running and check dipstick. Must be between high/low level, if top-up needed do it slowly and DO NOT over-fill
As said, colour is a good indicator too - if brown needs changing.

If this helps/cures then great, if not need to get it checked/codes read for autobox ECU.

 

J

JellySpanners

New Member

• Jan 14, 2011

• #6

Hi, I have had this before and it was a loose battery connection or charging/battery problem, check the tightness of all the battery cables?

 

G

Gary neath

New Member

• Jan 15, 2011

• #7

Thanks everyone for the replys.

 

G

Gary neath

New Member

• Aug 6, 2011

• #8

The problem has now been sorted,the problem was the Throttle Position Censor.

If anyone has similar problems to this have a look at this first,the cost of the censor was £70.00 and very easy to fit.