Author |
Topic: Loss of power after starting. (Read 1167 times) |
|
TugW
Newbie
I'm a YaBB newbie!
Posts: 34
|
 |
Loss of power after starting.
« on: Feb 5th, 2012, 11:44am » |
 Quote  Modify
|
My 2.3 scorpio falters shortly after starting. It doesnt respond to the accelerator but keeps running slowly. When warm it runs normally. I replaced the plugs but there was no improvement. I would appreciate some advice Tug
|
|
 IP Logged |
|
|
|
Tompion
Administrator
1997 2.3 Ultima estate.
Posts: 2918
|
|
Re: Loss of power after starting.
« Reply #1 on: Feb 5th, 2012, 2:10pm » |
Quote Modify
|
This may not be your problem, but just in case:
There is an issue on cars with an autobox with the engine running on 2 cylinders when cold. This usually only occurs if put into reverse shortly after starting.
My 2.3 has done it for years, I just make sure I don’t have to reverse straight away after the car’s stood overnight in cold weather & I never have a problem.
|
|
IP Logged |
ABS multiplug wheel sensor pins MK IV or MK 20
|
|
|
TugW
Newbie
I'm a YaBB newbie!
Posts: 34
|
|
Re: Loss of power after starting.
« Reply #2 on: Feb 5th, 2012, 3:20pm » |
Quote Modify
|
Thanks but I dont detect any missing cylinders. It just runs slowly. Tug
|
|
IP Logged |
|
|
|
Mike H
Senior Member
Renault Clio
 
Posts: 2594
|
|
Re: Loss of power after starting.
« Reply #3 on: Feb 5th, 2012, 8:12pm » |
Quote Modify
|
Limp mode? (LOS = Limited Operation Strategy = computer thinks summat's up)
|
|
IP Logged |
Mike H
|
|
|
Highlander
Moderator
Expert
13 Scorpios, XR4x4, Suzuki SJ413 for off road :)
Posts: 8244
|
|
Re: Loss of power after starting.
« Reply #4 on: Feb 6th, 2012, 11:26am » |
Quote Modify
|
What sort of mpg are you getting Tug?
Any kind of roar off it under load?
If its running ok after warming up and your mpg is low I'd look at the exhaust manifold, they are prone to cracking on the DOHC around cylinder 3
If your rev the engine under the bonnet you may well be able to see exhaust gas escaping round the EGR valve area with the manifold heat shield still in place.
Or remove the shield, 6mm and 15mm sockets if I remember, doesn't take long. (I usually leave them off anyway)
Failing that try the old favourites...
cleaning the throttle body, Idle control valve, MAF, EGR
Is it an auto?
Here's where they often crack, this one had an attempted repair with some sort of exhaust putty but it really needs welded or replaced.
|
|
IP Logged |
on Oct 17th, 2011, 12:35pm, Simmo wrote:I give up !  Too much for an old boy!  |
|
|
|
|
TugW
Newbie
I'm a YaBB newbie!
Posts: 34
|
|
Re: Loss of power after starting.
« Reply #5 on: Feb 6th, 2012, 5:17pm » |
Quote Modify
|
Thanks Highlander. The car is a 2.3 Ultima Auto. No roar heard. I will look for smoke. How does one clean the items you mention. Can you refer me to some info on that? Tug
|
|
IP Logged |
|
|
|
Simmo
Administrator
I'm an OAP !
Posts: 5508
|
|
Re: Loss of power after starting.
« Reply #6 on: Feb 6th, 2012, 5:21pm » |
Quote Modify
|
MAF details are Here. 
Info re the EGR is Here
Idle Air Control Valve is Here. This needs to be removed and the piston oiled with a fine oil such as 3 in One.
To clean the throttle butterfly simply remove the air intakes and manually open the throttle and clean the edges of the flaps with carb cleaner or similar.
|
|
IP Logged |
Now I'm an OAP
|
|
|
TugW
Newbie
I'm a YaBB newbie!
Posts: 34
|
|
Re: Loss of power after starting.
« Reply #7 on: Feb 8th, 2012, 3:59pm » |
Quote Modify
|
Thanks Simmo. I shall start to have a go at the devices when the temperature gets above freezing! Tug
|
|
IP Logged |
|
|
|
TugW
Newbie
I'm a YaBB newbie!
Posts: 34
|
|
Re: Loss of power after starting.
« Reply #8 on: Feb 21st, 2012, 4:53pm » |
Quote Modify
|
The fault was eventually traced to the Lamda sensor which measures the exhaust gases. It is similar in action to the MAF in that it uses a hot wire detector. This had burned out. Replacing it put it right. Thankyou all for your help. Tug
|
|
IP Logged |
|
|
|
Mike H
Senior Member
Renault Clio
Posts: 2594
|
|
Re: Loss of power after starting.
« Reply #9 on: Feb 22nd, 2012, 2:02pm » |
Quote Modify
|
Congratulations ~ before my MAF debacle it was found at one poiint both my lambdas had gone toes up
|
|
IP Logged |
Mike H
|
|
|
|
Home
Help
Search
Members
Login
Reply
Send Topic
Print