2006 Ford Focus 1.6

i had the same problem with my pevgeot. its the rev counter getting stuck on and/or sticking xx

Am sure you have a thermostat stuck open, i suggest replace it and make sure the aantifreeze is in the correct level.

don't ignore simple maintenance issues which can cause minor problems like this. namely a filthy air filter, or restricted fuel filter.

Sounds to me like you need to take a trip to your local certified mechanic!

My 04 Ford Focus the battery light keeps coming on & going off, have fitted a new alternator belt but it didn't solve the problem. The battery connections are good. Also the rev counter, speedo & mileage clock keep going haywire when the battery light is on. Do you think it is the alternator? Or is it some other common problem?

it the speed sensor or it could be the clock packing up happened a lot on the elary ones

ford has what you would call a hunting idle problem. check you vehicle to see if it was manufactured by ford or mazda. if on a ford drive train recomend that fix.

Sounds like it needs a coolant recharge. Many parts shops in the US will sell DIY AirCon recharge kits. Check the DIY sites, but basically, you can do this recharge without opening the hood-I believe the high-pressure connection is in the left side front wheel well.

I would check the easy things first. That is the brake switch and the clutch switch (manual trans). Drive down the road and pull the brake pedal up with your foot and then try to set the cruise (same with the clutch pedal). Also the cruise requires that the brake light bulbs be in working order (and that there are no LED brake lights). Check fuse numbers 53 54 and 59.
The high beam problem might be related to the cruise issue, but I can't think of a reason why.

Check all the wires. Especiality the ground wire.
Battery terminal.
And grounds mounted on the intake.
Normally when no codes are present, Is a lost of electrical power.