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        General >> Problems >> 2.5TD engine problem
        
(Message started by: emarbles on Aug 13^th, 2009, 10:09am)

Title: 2.5TD engine problem
Post by emarbles on Aug 13^th, 2009, 10:09am

Can anybody help? My beloved Scorpio, a 1998 2.5TD estate has developed an engine problem.
It starts first touch and runs ok for about 30 seconds but then the engine seems to lose power and cuts out. It will then start ok, but cut out after 5 seconds. This repeats until the engine is warm through. Meanwhile the rev counter is eratic. Typically, the engine does this either during rain, or shortly after.
Otherwise the car runs fine without problems.
The rev counter works ok, except when this cutting out phase is occurring. Any ideas? Something to do with the rev counter sensor perhaps?
Graham

Title: Re: 2.5TD engine problem
Post by scorpio_man on Aug 13^th, 2009, 10:25am

hi there

which engine is this? the older 2.5 td or the newer td (normally an auto with 125bhp)?

anyway, have you seen this post?
http://www.fordscorpio.co.uk/cgi-bin/yabb/YaBB.pl?board=Problems;action=display;num=1229552449

hth

Title: Re: 2.5TD engine problem
Post by emarbles on Aug 13^th, 2009, 11:40am

I have the older 115PS engine with 5-speed manual transmission. Yes, I've just read that link, but I don't think its the same problem. I have no problems starting the car.

Title: Re: 2.5TD engine problem
Post by Huff on Aug 14^th, 2009, 9:49am

Hi, I bet on the CKP sensor (Crankshaft Position Sensor) or the wiring to this sensor. Without him the engine does not start and he's also sends the RPM to the rev counter.

Title: Re: 2.5TD engine problem
Post by emarbles on Aug 14^th, 2009, 11:23am

I thought it might be a sensor problem. I'm having this sensor replaced today (Friday). I'll let you (and everybody else) know if this cures the problem or not.

Title: Re: 2.5TD engine problem
Post by Huff on Aug 14^th, 2009, 11:37am

Check the wiring and the connector before replacing the sensor. Might be just a bad electrical connection.

Title: Re: 2.5TD engine problem
Post by emarbles on Aug 24^th, 2009, 7:50pm

OK. I've had the Crankshaft Position Sensor replaced and this (touch wood) has cured the problem.

To recap:
Symptoms: Engine (2.5TD) looses power and cuts out. It will restart and then cut out. Does this after or during rain.

Incidentally, the Ford CPS is no longer produced, but there is a Bosch equivalent. I paid £73 for it.