ENGINE VACUUM LEAK

I Can Hear It Loudly When I Crank It Up. The Truck Listed Above Is A 2-wheel Drive.

Car Idles Real Rough Too Fast Not Enough Power Starts Up Easy Runs Good Check Vacuum Line Except For Fuel To Block Where Are Theyon...

At Times The Engines Will Rev Up And Down (doesn't Die) Garage Cleaned Out Throttle Body And Intake Lines But The Engine Still Serges...

Just Replaced Spark Plugs. Car Was Overheating Before But I Replaced Thermostat Water And Radiator The Problem Went Away.

V8 Gas Fuel Injected

Went I Turn My Air Control To Blow Air At My Face And I Get On The Gas It Quits Blowing From There And Starts Blowing From The Defrosters...

I Have Removed Throttle Body, Cleaned It. Removed Sensor And Cleaned It. Put Throttle Body Back On. The Car Will Start, But Only Idle. It...

I Put A New Intake And Plenum Gasket On Now The Car Has No Power And Sounds Like Its A Squeaking Almost Like Air U Think I Dident Seal The...

Bluedriver Scan Shows: P0131 O2 Sensor Circuit Low Voltage Bank 1 Sensor 1 P0171 System Too Lean Bank 1 P0174 System Too Lean Bank 2 ...

Changed Intake Manifold Gaskets Code Still Came Back. Any Idea?