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Bizzare 5th gear on motorway?

Posted: Sun Oct 29, 2006 11:13 pm
by Petrol_Head
Can anyone help with this mystery.

last week i had the throttle body cleaned and changed the thermostate.

The car has been running perfectly and no stalling ( touch wood)

Anyway... driving on the motorway and hitting 90 for a good 7 min stretch and with full beams (m4 at night time....very dark) and then giving the car a chance to cool down i dropped to 60 and crused at a slower rate. Anyway the car stopped performing... i pushed down on the accelarator and their was no response... i got nervous.. and began to pull over.

I stopped put hazards on and then checked to see if the new thermostate i put in was buggered. No sign of leakage from any pipes and the fan was in motion. I left the car for a min and had a cig, then went back and it drove fine?????

Has anyone experienced anything similar or knows what was wrong???

Posted: Mon Oct 30, 2006 8:31 am
by omicron
Sounds like it went to limp-home mode. No ideas why though.

As an aside, really, do not stop on the motorway (even the shoulder) unless you have utterly no choice. If you have to, don't go near the car, get up the bank as far away from it as you can, and wait for help.

Posted: Mon Oct 30, 2006 4:18 pm
by dragon_green
what was the temperature gauge showing before you started slowing?

Posted: Mon Oct 30, 2006 7:01 pm
by Petrol_Head
Sometimes i could sware the temperature gauge doesnt work.....IT never moves!

it all ways stays in the middle and i have never noticed it move while driving???