Ford escort revving on its own
Hi i am richard and i am in the uk i am having problems with my 1997 ford escort 1597 zetec engine. when i start it up when its warm ie if i stop at a supermarket or elsewhere, it revs up 1000 and back to 0 about 6 times before settleing at 950. it does not stall unless i have the lights or heaters on.
Please can someone advise me anything about this problem.
ps i have a couple of electrical problems the boot swith wont work and the heater was not working but a freind of mine has wired it up so it is constantly on 1 thinks it could be the fuse box. maybe this is something to do with the revving!?