Where's the airflow sensor located?
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Post Fiend
Joined: Jan 2000
Posts: 5,860
Likes: 4
From: Metro Detroit (Redford)
Where's the airflow sensor located?
Arrrrggh! Why can't I find this in the Haynes Manual? I looked in the Chilton manual for my wife's Aerostar and found it in a minute, but it is like Haynes totally omitted it for my F150. I'll never buy another Haynes manual!
Anyway, so where is the thing. I was going to hose some EFI throttle body/intake cleaner into the throttle body, but am afraid of messing the airflow sensor up. On the Aerostar ('92) it is right at the exit of the airbox, but I don't see that on the F150 (1995) which has two plastic tubes from the airbox to the throttle body (number of tubes is supposed to help determine between speed density and mass air flow, but I forgot which I have).
Anyway, so where is the thing. I was going to hose some EFI throttle body/intake cleaner into the throttle body, but am afraid of messing the airflow sensor up. On the Aerostar ('92) it is right at the exit of the airbox, but I don't see that on the F150 (1995) which has two plastic tubes from the airbox to the throttle body (number of tubes is supposed to help determine between speed density and mass air flow, but I forgot which I have).
Senior User
Joined: Apr 2003
Posts: 280
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From: Iowa
Where's the airflow sensor located?
airflow sensors pretty much all look the same, and are all located in about the same place (regardless of vehicle)
It is somewhere between the airbox and the intake manifold.
However, you might not have one??? (I dont' know if they were all switched over by 1995)
My 1994 F150 has one though.
It is somewhere between the airbox and the intake manifold.
However, you might not have one??? (I dont' know if they were all switched over by 1995)
My 1994 F150 has one though.
Post Fiend
Joined: Nov 2002
Posts: 9,987
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From: Memphis, TN
Where's the airflow sensor located?
Only '94-95 California-emissions 5.0Ls and 5.8Ls had MAF. If you have 2 pipes coming out of the air filter, you have MAP (SD). The 4.9L didn't get MAF until '96 when they all went OBD-II, and that was the last year for that engine. 
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Post Fiend
Joined: Jan 2000
Posts: 5,860
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From: Metro Detroit (Redford)
Where's the airflow sensor located?
Yeah, Bummer! The last year for a great engine.
So I have speed density, if anything, but don't know where it is. I assume it must be stuck alongside the throttle body. So what happens if I hose it all down with this intake/TB cleaning stuff? Does it go funky on me or am I ok?
Thanks
So I have speed density, if anything, but don't know where it is. I assume it must be stuck alongside the throttle body. So what happens if I hose it all down with this intake/TB cleaning stuff? Does it go funky on me or am I ok?
Thanks
Posting Guru
Joined: Dec 1999
Posts: 1,903
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From: Copley, OH
Where's the airflow sensor located?
To clean the T/B on an S/D engine, just pull the hoses off the T/B. Hold the throttle open a bit to keep it from stalling and spray away. The crud will dissolve and flush thrugh the engine. Be sure to use a coating-safe T/B cleaner. BTW you'll make more exhaust smoke than you thought possible.
Afterwards, you may want to pull the IAC solenoid and clean it separately with lacquer thiner and a brush. It can get very dirty and really isn't in the stream for the spray job.
Afterwards, you may want to pull the IAC solenoid and clean it separately with lacquer thiner and a brush. It can get very dirty and really isn't in the stream for the spray job.
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Post Fiend
Joined: Jan 2000
Posts: 5,860
Likes: 4
From: Metro Detroit (Redford)
Where's the airflow sensor located?
Thanks StrangeRanger and others. I will hose away. Also will look into pulling the IAC.
Oh yeah. I better take back my comment on the Haynes manual, though I do prefer the Chilton.
Paul
Oh yeah. I better take back my comment on the Haynes manual, though I do prefer the Chilton.
Paul
