loss of engine power - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars

wise guy · 11-15-2012, 02:58

i have a ford focus 2004 and i recently found that they is loss of power when moving off or going uphill especially when the a/c is on i have change plugs, plugs wires ,air and fuel filters and clean the throttle body

**R.S.LOGAN** · 11-15-2012, 04:11

You dont say what engine in car .Have you checked the timing ? Dependant on mileage , belt may be due replacing .

wise guy · 11-15-2012, 04:34

engine zetec se 2l mileage 187000 km can a worn timing belt cause this problem

**R.S.LOGAN** · 11-15-2012, 04:50

Belt should have been changed at max 100,000 , though a lot of people , myself included , prefer sooner .Belt can stretch and jump a tooth/s throwing timing out .If belt goes , big trouble with bent valves etc . if it's an interference engine.

wise guy · 11-15-2012, 04:56

didn't had the car from new not aware if belt could have been change however will have it check will let you know thanks again

**R.S.LOGAN** · 11-15-2012, 05:30

It's 10 yrs or 100,000 mls so there is every possibility it may be original . If not that , get back to the forum and I'm sure someone will be able to help / advise further or suggest something else .

wise guy · 11-15-2012, 07:53

thanks again Logan will have it check and replace on Saturday i will keep you posted By the way with the a/c off the performance isn't to bad

**R.S.LOGAN** · 11-15-2012, 08:00

The other thing it may be re. air con issue is the alternator output . May not be coping with additional load .Easy to check with meter .

**djzx3** · 11-15-2012, 18:17

Do you smell gas when this happens?

A lot of the time when the alt can't keep up, you will smell un-burnt gas.

**Big Block Ford** · 11-15-2012, 21:25

Just a thought if it only seems to occur with the aircon on perhaps the aircon compressor is seizing. I would have thought there would have been some noise from it or belt slip but its a possibility.