Questions & Answers for: GMC Yukon vapor lock fuel injection

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...FUEL INJECTION FOR GMC YUKON 98 I FEEL MY CAR FUEL INJECTION ARE CHOKED AND FUEL/AIR NOT PROPORTIONAL , HOW TO REPLACE ALL FUEL INJECTION WITH THE SENSOR check for plugged fuel filter on the frame ...

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...tank expanding. your fuel vapor building up pressure.your purge valve and vent valve open allowing gas vapor from charcoil canister. to be burn in the intake manifold to be burn in combustion

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...FUEL PUMP WORKS, REPLACED THE FILTER, BUT IS NOT INJECTING GAS INTO THE MANIFOLD, WHAT COULD BE THE PROBLEM?. You have a CSFI injection system. Call your local auto parts store and ask for a MFI ...

fuel vaporizes in the cylinder; reducing peak cylinder pressure by increasing the engine revolutions (e.g., shifting to a lower gear); decreasing the manifold pressure by reducing the throttle opening

Question about 2009 Yukon

1 Answer

2009 YUKON TAKES FUEL SLOW The problem is caused by a problem with the fuel vapor recovery system (known as the "EVAP" system) of the filler neck, it will require special testing to repair it.

...of hydrocarbon fuel produces both carbon dioxide AND water vapor as a normal part of the process. All gasoline engines produce water vapor and all water vapor condenses if the exhaust pipe is

Question about 2006 Yukon

1 Answer

A SCREW ON CAP AND VALVE. THIS IS WHERE SMOKE IS PUMPED INTO FUEL TANK AND LINES TO FIND WHERE FUEL VAPORS CAN LEAK INTO ATMOSPHERE. THIS IS FOR EMISSIONS ONLY.IF IGNORED WILL HAVE NO EFFECT ON ENGINE

...Tank vent is not working,,, see evos system,,,vent valve ,, vent valve filter EVAP SYSTEM - evaporative emissions . There is a charcoal canister under the vehicle near the fuel tank that

Question about 2008 Yukon SLT-2

1 Answer

...to tell you your vehicle is polluting 1.5 times more then allowed by the EPA . You probably have a evaporative emission system problem ! The EVAP system as it is called traps an contains fuel vapors ...

...vapor lock and what can i do Most fuel injected vehicles no longer experience vapor lock, since fuel circulates continuously thru the fuel rail and back to the tank. More likely, you have an ...

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