Hi, i've just bought a mondeo st24, i know virtually nothing about post 90's fords really i'm an old skool fan. When you accelerate the car hesitates and stutters. i recall the MAF sensors on these are prone to failing. would this cause it?

It has a brand new coilpack and leads in it presumably the previous owner tried to sort it too but failed?

its a 2.5 V6 1999 / 2000.

Cheers. Joe.

 

yes the maf will cause it to hold back/splutter

try cleaning it with electrical cleaner and go from there

tommy

 

cheers for the reply mate, how do you mean clean it?

the electrical plug pins? they're shiney brass when i took the plug off,

or do i take the torx screws out and spray inside that with wd40?

Joe.

 

check the plugs and the tps aswel if the maf doesnt clear it

 

Cheers, i've looked it up on google and used some brake cleaner through the maf (now i know what it is ) and its 90% better but not perfect. Whats the TPS? throttle position sensor?

is the tps something you clean or replace?

Cheers. joe.

 

yeah, tps is is the throttle position sensor. its located on the throttle body at the front as you look at, black plastic connector, never hurts to check them either, as there prone to failing on V6 2.5's. id defo check your plugs aswel, if its had new coil pack and leads, which are also prone to failing, chances are, its had plugs aswel, becasue when they develop a missfire, its cheapest to expensive, so usually people start by changing the plugs, then leads, then coil pack, but it never hurts to check them, as they have long life plugs, so they last a while, and changing the back three isnt the easiest job unless you have rite extension bar and wobbley socket, so there overlooked a lot of the time.

 

Cheers dude. i'll have another play tomorow now.

i'll let you know how i get on

 

The engines are pretty bulletproof mate, im on my second V6 now, its done 105K, and it hinestly purrs like a kitten, starts first time, and goes very well for what it is. its just a case of getting to know there little problem areas, its usually one of the things mentioned above. the only major things that go wrong is the dread ticking sound that is follwed by headgasket failure, and they do like to spin the shells if the oil isnt kept topped upto maximum, or, tbh, just above maximum. a lot of the time when they spin the shells, if follows cornering at high revs, with the oil level low, they dont have a baffled sump, and suffer oil starvation, so as i said, keep a regular eye on your oil level, and keep it topped up.