ST170 won't rev above 5000rpm under load now fixed
#1
Part of the Furniture
Thread Starter
Join Date: Jan 2010
Location: North Wales
Posts: 159
Likes: 0
Received 0 Likes
on
0 Posts
![Question](https://passionford.com/forum/images/icons/icon5.gif)
Hi, my ST170 (2003) refuses to rev above 5000rpm when in 1st to 6th. it rises fine to 4,500ish then it just stutters and holds back. It sounds like its running on all 4 cylinders when im idleing so im guessing its not ignition related. Is its likely to be the fuel pump, and if i plugged a code reader in would the car give a code?
Further info
64k on clock
serviced at 59k- planned to service again over easter
runs on shell v-power
no warning lights
has bluefin set up for correct fuel
Further info
64k on clock
serviced at 59k- planned to service again over easter
runs on shell v-power
no warning lights
has bluefin set up for correct fuel
#2
Wahay!! I've lost my Virginity!!
Join Date: Dec 2009
Location: Kilmarnock
Posts: 55
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://passionford.com/forum/images/icons/icon1.gif)
duss it rev past 5k when the car is staionary ?
sounds like it could be the fuel pump, it happend on my dads car but hisj ust ran like a bag of shite it wouldnt rev at all but when it was staionary it would rev on too the red. and his was around the same millage too and also he didnt have any warning lights come on.
hope that helps mate
sounds like it could be the fuel pump, it happend on my dads car but hisj ust ran like a bag of shite it wouldnt rev at all but when it was staionary it would rev on too the red. and his was around the same millage too and also he didnt have any warning lights come on.
hope that helps mate
#3
Part of the Furniture
Thread Starter
Join Date: Jan 2010
Location: North Wales
Posts: 159
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://passionford.com/forum/images/icons/icon1.gif)
Yeah when its in neutral it revs fine, but i do feel like abit of a chav reving the engine in the middle of the street ![Grin](https://passionford.com/forum/images/smilies/icon_smile.gif)
cheers for the input
![Grin](https://passionford.com/forum/images/smilies/icon_smile.gif)
cheers for the input
#6
Part of the Furniture
Thread Starter
Join Date: Jan 2010
Location: North Wales
Posts: 159
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://passionford.com/forum/images/icons/icon1.gif)
and now today my car seems better. im down to half a tank and its kind of just slowing down after 5000rpm, rather than hitting an un-passable wall. wierd.
About the MAF sensor, can it just be cleaned or reset?
cheers
About the MAF sensor, can it just be cleaned or reset?
cheers
#7
Ford Mondeo ST225
Join Date: Nov 2008
Location: Russia, Moscow
Posts: 9
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://passionford.com/forum/images/icons/icon1.gif)
Maf sensors cant clean up or reset as you say.
You just by a new one.
Anyway my opinion on the problem you have doesn't seem to me like maf sensor.
Good thing to do try one before you buy it...
You just by a new one.
Anyway my opinion on the problem you have doesn't seem to me like maf sensor.
Good thing to do try one before you buy it...
Last edited by Dimitris013; 13-03-2010 at 01:34 PM.
Trending Topics
#8
Part of the Furniture
Thread Starter
Join Date: Jan 2010
Location: North Wales
Posts: 159
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://passionford.com/forum/images/icons/icon1.gif)
well I carb cleaned the MAF and throttle body and it may be unrelated but the car feels alot better now. It still doesn't feel right though so I think a fuel pump change is needed. I might even treat my car to a sytec uprated fuel pump
![Smile](https://passionford.com/forum/images/smilies/icon_smile.gif)
#21
![Default](https://passionford.com/forum/images/icons/icon1.gif)
one othe look in the engine bay, top of the rocker cover drivers side, cables enter here onto the variable valve timing solonoid, check these are ok, had these rub through because a monkey many moons ago who serviced my car and changed the plugs did not run lay the cable back properly, also the plug here can work loose.
#22
Part of the Furniture
Thread Starter
Join Date: Jan 2010
Location: North Wales
Posts: 159
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://passionford.com/forum/images/icons/icon1.gif)
the protective shief covering the wires looks abit worn, I might get a new one, but the wires all look good. Thanks for the ideas anyway.
#23
![Default](https://passionford.com/forum/images/icons/icon1.gif)
most prob the IMRC control unit, but just make sure the cables are OK, the cables that run under the headlamp cant be seen, give them a gentle tug been known to come apart at this point. sorry cant be of more help.
#26
FROZEN WHITE FRS No2676
Join Date: Dec 2008
Location: ALCATRAZ ISLAND, GUERNSEY,C.I
Posts: 501
Likes: 0
Received 1 Like
on
1 Post
![Default](https://passionford.com/forum/images/icons/icon1.gif)
Had the exact problem with mine mate two weeks ago wouldnt rev checked everything turned out to be imrc box on the bulk head common fault with the st cost me new from ford Ł172 runs like a dream now.
#27
Part of the Furniture
Thread Starter
Join Date: Jan 2010
Location: North Wales
Posts: 159
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://passionford.com/forum/images/icons/icon1.gif)
cheers, I'll make sure the mechanics have a good look at it to see if it definitely is the fault. Can't wait to have her up to full power again.
#29
Part of the Furniture
Thread Starter
Join Date: Jan 2010
Location: North Wales
Posts: 159
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://passionford.com/forum/images/icons/icon1.gif)
Well today I changed the coil pack and the car now seems alot better. Im still not convinced that the car issue free but it rev's up to 7000rpm with ease now.
Old Coil
![](https://passionford.com/forum/picture.php?albumid=2298&pictureid=12968)
New Coil, in lovely yellow :-(
Old Coil
New Coil, in lovely yellow :-(
#31
Part of the Furniture
Thread Starter
Join Date: Jan 2010
Location: North Wales
Posts: 159
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://passionford.com/forum/images/icons/icon1.gif)
Since I changed the coil pack the car seems fine. I 'cleaned' The MAF with carb cleaner on about 1/4 throttle as well but I think it was the coil pack that cured it in the end.
#33
Part of the Furniture
Thread Starter
Join Date: Jan 2010
Location: North Wales
Posts: 159
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://passionford.com/forum/images/icons/icon1.gif)
![Neutral](https://passionford.com/forum/images/smilies/icon_neutral.gif)
#35
![Default](https://passionford.com/forum/images/icons/icon1.gif)
hi tom my st170 has started playing up it runs perfect till its warmed up then shudders if i try to push it past 5000 rpm then it gradutaully dies and gets worse in traffic and sometimes doesn't let me rev at all then i knock it off for 2 mins then it goes fine again ![Confused](https://passionford.com/forum/images/smilies/icon_confused.gif)
is that the same sort of problems you had
![Confused](https://passionford.com/forum/images/smilies/icon_confused.gif)
is that the same sort of problems you had
#36
Part of the Furniture
Thread Starter
Join Date: Jan 2010
Location: North Wales
Posts: 159
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://passionford.com/forum/images/icons/icon1.gif)
hi tom my st170 has started playing up it runs perfect till its warmed up then shudders if i try to push it past 5000 rpm then it gradutaully dies and gets worse in traffic and sometimes doesn't let me rev at all then i knock it off for 2 mins then it goes fine again ![Confused](https://passionford.com/forum/images/smilies/icon_confused.gif)
is that the same sort of problems you had
![Confused](https://passionford.com/forum/images/smilies/icon_confused.gif)
is that the same sort of problems you had
Problem is there seems a few things that fix this.
I changed the spark coil and the car was fixed for half a year but then it came back. Changed the fuel pump and it was still iffy, turned out it was the fuel pump sender (or the module what ever its called) the second time.
Both problems only caused issues when the car was warm
#37
Wahay!! I've lost my Virginity!!
Join Date: Aug 2012
Location: Larkhall
Posts: 50
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://passionford.com/forum/images/icons/icon1.gif)
Found this via google!
Do you have a part number or anything else more definate about the fuel pump sender/module thing?!
Only thing for can come up with is the sender attached to the pump which only controls the level gauge.
Do you have a part number or anything else more definate about the fuel pump sender/module thing?!
Only thing for can come up with is the sender attached to the pump which only controls the level gauge.
Thread
Thread Starter
Forum
Replies
Last Post
Russ Payne
Ford Sierra/Sapphire/RS500 Cosworth
1
25-09-2015 08:29 PM
Andypandy260
General Car Related Discussion.
1
23-09-2015 10:28 PM