Ford Scorpio Forum - Print Page


    
      
        Ford Scorpio Forum
        (https://www.fordscorpio.co.uk/cgi-bin/yabb/YaBB.pl)
      

        General >> Problems >> overheating
        
(Message started by: trogg on May 25^th, 2006, 8:09pm)

Title: overheating
Post by trogg on May 25^th, 2006, 8:09pm

i'm having overheating problems on my 2ltr 16v scorpio. the temperature gauge only ever goes half way and the first indication is steam coming from under the bonnet. also i have never seen the cooling fans working.

Title: Re: overheating
Post by Baw_Flinger on May 25^th, 2006, 8:21pm

Had this today mate myself mate ;D >:( Turned out to be a ripped hose. Check to see whether you have pressure in the top pipes, check for leaks/rips and thermostat. To test the fans run the engine revs manualy from the bay for a min or so, as soon as it reaches a certain temp, they should come on. It should also kick in when you switch on the AC. See my other thread.

Title: Re: overheating
Post by trogg on May 25^th, 2006, 8:41pm

THANKS FOR THAT MATE DON'T HAVE THE BENNEFITS OF AC

Title: Re: overheating
Post by sector-9 on May 25^th, 2006, 10:57pm

May not be overheating if gauge is in normal position and fans not running. Could just be leaking a small amount of coolant onto the engine or exhaust and it is this causing the steam. My hose from the bottom of the expansion tank had split at the worm clip and was dripping a small amount of coolant onto the engine causing mine to steam slightly when stopped...

Darren

Title: Re: overheating
Post by trogg on May 26^th, 2006, 4:59pm

mine seems to be pushing it out of the overflow pipe

Title: Re: overheating
Post by Highlander on May 26^th, 2006, 5:07pm

Gauge may have a bad joint

http://www.fordscorpio.co.uk/coolanttempgauge.htm

Title: Re: overheating
Post by solarpanel on May 26^th, 2006, 5:09pm

sounds like head gasket to me, had that on my old mk3 2.0 litre.take off the cap and see if the water flows through the header tank.

Title: Re: overheating
Post by trogg on May 26^th, 2006, 5:59pm

thanks highlander i recently had some work done on the instruments. 2 dry joints were soldered maybe they put to big a blob on. anyway so far there are no other signs of a failed head gasket,no water in the oil etc.

Title: Re: overheating
Post by Dave on May 27^th, 2006, 1:55pm

Trogg,

I had this exact same problem a few weeks ago, *touch wood* has been completely cured by a new reservoir tank cap.

Cheers

Title: Re: overheating
Post by trogg on May 27^th, 2006, 6:56pm

thanks for that but i have already tried a new cap

Title: Re: overheating
Post by jonnycab on May 27^th, 2006, 7:13pm

Does the heating work okay. A blocked or restricted heater matrix can cause a pressure build up which can blow water out of the overflow. Also if the heater matrix is leaking (maybe so slight that it doesn't notice) then an air lock can form which can make it's way to the overflow pipe & dispel some water in front of it.

Title: Re: overheating
Post by trogg on May 27^th, 2006, 7:15pm

yes the heating seems to work fine it certanly gets hot enough.

Title: Re: overheating
Post by jonnycab on May 27^th, 2006, 7:21pm

When you see steam coming from under the bonnet, have you seen where it is coming from?

Title: Re: overheating
Post by trogg on May 27^th, 2006, 10:04pm

water is being pushed out off the overflow then steam comes out of the cap

Title: Re: overheating
Post by Kjetil S on May 27^th, 2006, 10:34pm

Any oil in your water?

Title: Re: overheating
Post by sector-9 on May 27^th, 2006, 11:36pm

Try letting the engine idle with the cap off - do this from cold so that it warms up completely until the fans cut in. The water level will rise, but provided it wasn't overfilled in the first place it should not overflow out the tank. If it does and bubbles violently then it's probably got air trapped in it or possible head gasket fault.

As far as I'm aware, overflow pipes are not fitted onto Ford expansion tanks featuring screw-on plastic caps. The older type with the metal bayonet type fitting do have though and in this case I would suspect that the cap is the wrong pressure rating or not sealing against the lip in the filler neck.

Darren

Title: Re: overheating
Post by Kjetil S on May 27^th, 2006, 11:46pm

on 05/27/06 at 23:36:43, sector-9 wrote:

As far as I'm aware, overflow pipes are not fitted onto Ford expansion tanks featuring screw-on plastic caps.

If we're speaking of the same thing, you're mistaken ;)

I have a 1995 2.0 16v with a semi-transparent plastic tank with a plastic screw-on cap, and it DOES have a rubber overflow pipe running from the top of the tank and down next to the engine, ending up in free air.

When I blew my head gasket, I noticed a heavy blast of oil-filled water coming out this pipe, leaving a dirty pool of coolant on the ground.

Title: Re: overheating
Post by sector-9 on May 28^th, 2006, 11:12am

Okay, my mistake. As I said, I've only seen the overflow pipes on the old tanks with metal caps...

Darren

Title: Re: overheating
Post by trogg on May 28^th, 2006, 3:34pm

no oil trace in the coolant i will try as you suggest thanks lads i will let you know the results

Title: Re: overheating
Post by trogg on May 28^th, 2006, 3:57pm

just tried it without the cap, steam came out and then coolant came over the top the fans did not cut in. also the temp gauge only read half way.

Title: Re: overheating
Post by solarpanel on May 28^th, 2006, 5:00pm

do the fans spin freely. my boys fiesta fan packed up the other day and his car overheated in traffic.

Title: Re: overheating
Post by trogg on May 28^th, 2006, 5:09pm

yes the fans spin freely

Title: Re: overheating
Post by jonnycab on May 29^th, 2006, 12:44am

Not rad, not expansion cap, not blocked pipes, not heater matrix, not head gasket, not fans.
Better call an exorcist!!

Title: Re: overheating
Post by trogg on May 29^th, 2006, 6:40pm

its certanly mystified me.

Title: Re: overheating
Post by sector-9 on May 29^th, 2006, 6:56pm

Definitely not air trapped in the system? This will expand more than liquid so if any is trapped it may cause the tank to overflow.

Try draining the system and refilling again - slowly!

Darren