Fordmods Logo

Ef Unknown problem :/ 

 

Page 1 of 1 [ 6 posts ] 

 
 Post subject: Ef Unknown problem :/
Posted: Thu Sep 15, 2011 10:33 am 
Fordmods Newbie
Offline

Age: 36

Posts: 16

Joined: 17th Feb 2011

Ride: EF falcon Gli

Location: Newcastle
NSW, Australia

Hai, owned this car for 3 years never had this problem :/

Ford Ef 4.0ltr Falcon.
Symptoms:
Sometimes its starts fine and idles decents but other times it has starting problems idles low and sounds like its running on 5 cylinders.
Its been going like this for the past month :/


i have replaced Plugs, leads ,coil packs, MAP sensor and this problem is still on going and know what it could be?
Top
 Profile  
 
 
 Post subject: Re: Ef Unknown problem :/
Posted: Thu Sep 15, 2011 3:56 pm 
Getting Side Ways
Offline

Posts: 836

Joined: 1st Apr 2005

Gallery: 4 images

Ride: EF XR6 Wagon, AU2 XR6 VCT

Power: 148 rwkw

Location: Auckland
New Zealand

Any other symptoms? Losing any coolant? Does it run fine above idle? Is one spark plug perfectly white while the others are all tan/brown/grey? I'm thinking could be failed head gasket leaking coolant into one cylinder. That can do what you describe, and it's very common on pre-AU sixes.

Ignition is basically all new, so unlikely to be the problem. But worth checking for a worn shaft on the cam angle sensor, as that can sometimes cause uneven firing. Unfortunately, need to pull the unit out to check it for play - a bit of a pain.

You can determine which cylinder is not firing by unplugging your injectors one at a time while it is running like it's on 5 cylinders. It should idle worse (or stall) each time you unplug an injector. If it doesn't, you have found the cylinder that wasn't producing power anyway.

That's all I can suggest. Getting an auto electrician to put it on the 'scope should cost very little and maybe isolate the source of the problem.

Have you pulled the error codes from the ECU? There is a sticky somewhere on Fordmods describing how to do it and what the codes mean. This will also be in your Haines or Gregory's manual if you have one. (if not, get one :D )

 

_________________

95 EF XR6 wagon, 17" FTRs, DBA, QFM, KYB/Koni, AU block, ported EF head, SS Inductions, Territory intake, MLS gasket, milled, Franklin RH24B cam, Coby headers, no cat, Tickford 2.5", 2800rpm stall, J3 chip

Top
 Profile  
 
 
 Post subject: Re: Ef Unknown problem :/
Posted: Thu Sep 15, 2011 8:52 pm 
Parts Gopher
Offline

Posts: 73

Joined: 28th Nov 2010

Ride: EF Futura wagon, BF MKIII Wagon

Location: Brisbane
QLD, Australia

put a piece of clear pipe on the fuel pressure regulator vacuum port and connect it as usual to the manifold..if you see fuel in the pipe while the engine is running its stuffed....(fuel pressure regulator)...
Top
 Profile  
 
 
 Post subject: Re: Ef Unknown problem :/
Posted: Thu Sep 15, 2011 11:33 pm 
Fordmods Newbie
Offline

Age: 36

Posts: 16

Joined: 17th Feb 2011

Ride: EF falcon Gli

Location: Newcastle
NSW, Australia

Hey guys thansk for the reply's. Its sputters n sounds like its running on 5 maybe 4 cylinder and drives bad and stalls... Coffee milky liquid in the engine so blew a head gasket im pretty sure. So im guessing im replacing a new head? engine?... this car is a 5 speed btw
Top
 Profile  
 
 
 Post subject: Re: Ef Unknown problem :/
Posted: Thu Sep 15, 2011 11:36 pm 
Fordmods Newbie
Offline

Age: 32

Posts: 16

Joined: 23rd Aug 2011

Gallery: 2 images

Ride: 95 ef opt20

Location: harden
NSW, Australia

definatly sounds like a head gasket mate.

 

_________________

95 ef futura
ex police...
lukey 2.5 inch system..
lowered on kings...
chrome 18s..
sony xplode bluetooth head, kenwood 6inchs, kenwood 6x9s,
kenwood 1000watt amp, 800watt kenwood 12 inch sub...

Top
 Profile  
 
 
 Post subject: Re: Ef Unknown problem :/
Posted: Fri Sep 16, 2011 5:03 pm 
Getting Side Ways
Offline

Posts: 836

Joined: 1st Apr 2005

Gallery: 4 images

Ride: EF XR6 Wagon, AU2 XR6 VCT

Power: 148 rwkw

Location: Auckland
New Zealand

When the head gasket goes, the head is usually still OK. Just get the head checked for cracks, and you will need to get it skimmed a little to make sure the gasket surface is perfectly flat and smooth. You might also want to get a 3-angle valve job done while the head is in getting skimmed.

Replace the gasket with the multi-layer steel (MLS) one from the AU. It is much more reliable, and will give you a couple extra points of compression, so a little more power.

 

_________________

95 EF XR6 wagon, 17" FTRs, DBA, QFM, KYB/Koni, AU block, ported EF head, SS Inductions, Territory intake, MLS gasket, milled, Franklin RH24B cam, Coby headers, no cat, Tickford 2.5", 2800rpm stall, J3 chip

Top
 Profile  
 
Display posts from previous:
Sort by  
 Page 1 of 1  [ 6 posts ] 

Who is online

Users browsing this forum: No registered users and 34 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

 

 

It is currently Mon Dec 18, 2017 4:56 pm All times are UTC + 11 hours

 

 

(c)2014 Total Web Solutions Australia - Australian Web Hosting and Domain Names