I have recently bought a 1997 r reg ford escort gti 1800 zetec and sometimes on tick over when cold the revs see saw up and down and sometimes when warm it can cut out at junctions? sometimes its fine though? someone has put a big air filter on it before i bought it could this be the cause?
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SOURCE: ford tick over problem
Hi there!
A few more things to check for you.-
A vacuum leak in any of the vacuum hoses will cause the ECU to make random guesses at what's going on.
Have you replaced plugs recently - or at all? This is probably the main cause - and certainly worth a try.
Fuel filter should be replaced at recommended intervals - about 3 years.
Clean your leads and HT gear really well with a degreasant. Any losses will be more noticable at tickover than high revs.
Lastly.........wear on cam lobes or timing belt.
Hope it's cheap for you!
Please spare a moment to rate as fixya! if any of this information proves useful. Thanks (I don't get paid for this)
SOURCE: cylinder head ford zetec escort p reg
Stage 1 = 15Nm
Stage 2 = 40Nm
Stage 3 = Plus 90 degrees or quarter of a turn. Good tip is to mark all the bolts after initial torque setting with tip-ex , i.e. all to the front of the car. When you finish they should all point towards the timing belt.
This is also a good way to make sure you don't miss one or tighten one twice if you are distracted since it is not a torque setting. New bolts should be used by the way as they are stretch bolts. Timing of cams - remove cam cover and you will see a slot on the end of the cams. Opposite end from belt. You need to slip a piece of 5mm flat bar or a long 5mm allen key into then so that the bar rests on the face of the head. Engine should be a tdc.
cheers John
SOURCE: hi ive got a escort gti 1998 mk7 1.8i zetec. when
the symptom you discribe sound like a bad throttle position switch.(T.P.S. switch) test, replace, and calibrate switch & prob should go away. good luck.
SOURCE: ford tick over problem
The battery could be slightly weak, making the computer go on the fritz,
try a fresh battery!!!!
The rev counters bounce often with a weak battery.
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my 997 ford escort does the same thing in cold weather. only it cranks, then shakes alot; when i put it into gear it turns off. it has only started doing this when the weather got cold. if i figure out what the problem is i will post the solution asap
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