Yes. The manifold clogs up with goop.
Imo cleaning the MAF is worthless. They age with use, not by getting dirty.
Need Help with Freelander TD4 HSE SW 2004
- Thread starter VELZ
- Start date
This site contains affiliate links for which LandyZone may be compensated if you make a purchase.
Yes. The manifold clogs up with goop.
Brill i'll have the manifold off over the weekend if I can find the bolt locations and I'll forget about the MAF.
An update on what I done so far to try and resolve the black smoke issue and lack of power.
I have replaced the long vac hose from the vac tank to the solenoid, fitted the new air filter, was going to fit new oil separator but it had already bean done at some point, I fitted an EGR blanking kit, checked the other two hoses on the solenoid they seem fine but attached a turbo vac filter to the end of one hose.
Still get black smoke, not as much but still exists. seems to be a little more powerful.
Will buy some Mr Muscle as I was reading it works well in cleaning the Manifold and flush it out with the jet wash if this is correct.
Not sure what to do after that.
An update on what I done so far to try and resolve the black smoke issue and lack of power.
I have replaced the long vac hose from the vac tank to the solenoid, fitted the new air filter, was going to fit new oil separator but it had already bean done at some point, I fitted an EGR blanking kit, checked the other two hoses on the solenoid they seem fine but attached a turbo vac filter to the end of one hose.
Still get black smoke, not as much but still exists. seems to be a little more powerful.
Will buy some Mr Muscle as I was reading it works well in cleaning the Manifold and flush it out with the jet wash if this is correct.
Not sure what to do after that.
Madmustang
Well-Known Member
- Posts
- 1,639
- Location
- Castleford
Do you not have a code reader?
Madmustang
Well-Known Member
- Posts
- 1,639
- Location
- Castleford
Have you tried disconnecting the MAF so it runs its default program. That will rule it out if there is no chnage
Madmustang
Well-Known Member
- Posts
- 1,639
- Location
- Castleford
lol welcome to our world
well I got this from the internet "Black Smoke: Cause, Impact, and Prevention. ... Over-fueling is the primary cause of black smoke from the exhaust of a heavy duty diesel engine. Over-fueling can be caused by diesel fuel injector wear that enlarges the nozzle hole or erodes the injector needle and allows excess fuel to flow into the combustion chamber"
Madmustang
Well-Known Member
- Posts
- 1,639
- Location
- Castleford
From the internet "A mass (air) flow sensor (MAF) is used to find out the mass flow rate of air entering a fuel-injected internal combustion engine. The air mass information is necessary for the engine control unit (ECU) to balance and deliver the correct fuel mass to the engine."
If its over fueling it could be injectors or its not getting the right amount of air mixed with the fuel. If you disconnect the MAF it will run a default pre programmed fuel air mix. might give you a clue as to what is going on. Its at the back of the engine just passed the air filter on the left if you are looking at the front of the engine.
Madmustang
Well-Known Member
- Posts
- 1,639
- Location
- Castleford
Madmustang
Well-Known Member
- Posts
- 1,639
- Location
- Castleford
Do the MAF first. you could give it a clean or run a tank or two of good quality fuel and a a dose of Comma magic through which might slove your problem, If that fails and you do the leak off test and you find an injector issue. You are proberly best getting somebody to do it as it looks very messey and it WILL be expensive. Good luck.
https://www.landyzone.co.uk/land-rover/td4-maf-sensor.71264/
If you changed the air filter. Then you would have seen the MAF sensor wiring. It's on the left of the filter housing. Under the filter top cover.
Hi Nodge yes I think I found it, been out again this morning to look for it. has a plug/connector attached to the top of it with two hex or torx screws holding it in place.
Have not removed it as yet or unplugged it as i was having difficulty undoing the clip that holds the wire to the top and I have to research I I clean it.
Many thanks for your reply, always very helpful.
Have not removed it as yet or unplugged it as i was having difficulty undoing the clip that holds the wire to the top and I have to research I I clean it.
Many thanks for your reply, always very helpful.
Just bumped into a mechanic in the local Cafe and was having a chat with him and explained what I have done so far. yet another cracking reply form a mechanic (Maybe it it needs a long run to clear it out) followed by (you might need to clean the catalytic converter by taking it off an washing it out)
So far I have had suggestions that it might be the Fuel injectors, Turbo, Maf, Hoses, Solenoid, Fuel Pump, Crank case filter, EGR , LoL, that's half of the engine.
So far I have had suggestions that it might be the Fuel injectors, Turbo, Maf, Hoses, Solenoid, Fuel Pump, Crank case filter, EGR , LoL, that's half of the engine.
Yes it will go out. It will log a couple of codes, but you'll know the origin, so it won't matter.
Last edited:
Similar threads
