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2000 Ford Explorer

  • Abdiche
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8 years 2 months ago #14127 by Abdiche
2000 Ford Explorer was created by Abdiche
Hi Paul ope you well and your family.

I've checked a Ford Explorer 4.0 Petrol.

Idle speed : AROUND 800 RPM

AIR FLOW RATE (G/S) =3.59.
STFT B1=12.5. UP 28
LTFT B1= 23.4
STFT B2=42.2
LTFT B2=28.1.

LOAD AROUND 3000 RPM.

AIR FLOW RATE (G/S) =19.06.
STFT B1=14.1
LTFT B1= 10.9
STFT B2=23.4
LTFT B2=15.6.

O2S B1 S1 RICH AND LEAN. 0.85 -- 875
O2S B2 S1 RICH AND LEAN 0.75 -- 875.

LEAK SMOKE TEST NOT BAD THERE IS A VERY MINOR LEAK.

I AM BLAMING AIR FLOW ME.TER

WHAT DO YOU THINK?


MANY THANKS

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  • Tyler
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8 years 2 months ago #14130 by Tyler
Replied by Tyler on topic 2000 Ford Explorer
A bad MAF is certainly possible, but the trims really seem to suggest a vacuum leak. Did you happen to check the brake booster during the smoke test? The one-way valve will prevent smoke getting there if you hook it up to the intake.

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