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1995-2002 Range Rover P38A
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Discussion Starter #1
Hi Folks,

Please advice on how to clean a dirty MAF.What solvent should be used.I drive a 1996 4.0 Rangie.
 

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Legacy Vendor
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341 Posts
Search is your friend... quite true... and I'm sure you will in the future.

This is a quickie response and what I've found worked for me:
Isopropyl alcohol in a spray bottle is good because it cleans quickly and leaves no residue.
Use a can of compressed air to blow the dirt off the MAF resistors... from a distance of about 20cm... just a gentle blow is all it needs... you don't want to risk breaking the fine wires in there, then leave it in a warm, dry place to dry out properly.
If really dirty, use a cotton bud very carefully to wipe the wire after applying the isopropyl alcohol... at your own risk.

Cheers, Paul.
 

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1995-2002 Range Rover P38A
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Discussion Starter #4
Thanks Man.Am about to ask a foolish question.

Taking out my MAF,there is a wire gauze which I find I cant remove except I break it out.My question is do I spray the alcohol through this Gauze.How am I sure the acohol will get to the wires through the gauze
 

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1995-2002 Range Rover P38A
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1,365 Posts
Not stupid at all.

I'd like to know too, but there is, I think, a recent thread on this .....
 

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Edable said:
Thanks Man.Am about to ask a foolish question.

Taking out my MAF,there is a wire gauze which I find I cant remove except I break it out.My question is do I spray the alcohol through this Gauze.How am I sure the acohol will get to the wires through the gauze
The gauze is held in by the plastic ring. Pull the ring out and the gauze will fall out. The best way to clean the sensor is to drill out the 4 rivits, pull the sensor out and when you have sprayed it clean replace the rivits with small self tapping screws.
 

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The gauze come out with the surrounding plastic sleeve.

It just slips into the maf housing. Therefore it should slip out.

Also Some do remove the 4 screws ( or rivits) from the side and slide out the maf element to clean.
 

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Hello, i have done the rivits thing, drill them out and slide out the sensors you then can clean it but dont touch any of the exposed parts they should just come clean with the liquid, i think i dipped it nail varish remover or the stuff you use to clean dvd player heads. Leave it of about an hour to make sure it dry and then replace and use screws. Mine was showing low air flow on MSV after cleaning it was in acceptable levels. Cleaning sure beats the price rimmer brothers are charging for a landrover part £800+, post suggest that a patent part can cause more issues, just take care when cleaning. I got one from a scrap yard for £10 as a spare will repeat the process again as long as the sensors are not broke should be ok.
cheers
Onetime
 

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2010-2012 Range Rover MkIII / L322
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4,635 Posts
The 2A Lucas MAF's for the classic 14CUX systems are over £1,000 from the dealership...
 
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