air popping from top of engine, reduced power
10

Asked by Reliant_1489 Feb 27, 2017 at 07:18 PM about the 2003 Ford F-150 XLT Extended Cab SB

Question type: Maintenance & Repair

6 Answers
59,045

enginecreator answered 7 years ago

There are some vacuum hoses that connect to underside of upper intake (1 near front center & 1 near back left) also has PCV on rear left valve cover that line runs to underside of intake in front behind thermostat housing. Brake booster vacuum hose.

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101,595

KenF answered 7 years ago

Check EGR vacuum solenoid. Popping might be coming from exhaust not enough back pressure when you accelerate.

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F_O_R answered 7 years ago

I think you blew out a plug which is a known issue with the Triton engines.

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