Sunday, January 8, 2012

Engine hard to start after gas refill?

This problem is noticed on many car models.
The engine gets hard to start after filling gas.The engine takes more cranking.But once it starts it runs fine.

The only way this can happen after refueling is if the on board vapor recovery system is not functioning properly. It is possible that fuel vapor is being pushed into the intake manifold. This can only happen if the vacuum switching valve for the vapor purge system is stuck open. Normally this would cause some type of evaporative emissions code to set in the engine control computer. There have been some issues with fuel pumps going bad and there is a technical service bulletin dealing with bad engine control computer's. I just don't believe that fueling the engine would affect either one of these with the exception of possibly the fuel pump. Cold fuel can have a tendency to change the dynamics of the fuel pump. There are multiple possibilities in this case. I would have the evaporative system tested and checked along with the vapor purge valve.
Getting this possibilities checked/ inspected will help.

Thanks.,
-----------
See below list of more solved car problems :--------

How to replace wheel bearing on Honda Civic?

http://repairhelpcenter.blogspot.com/2012/01/how-to-replace-wheel-bearing-on-honda.html

Temperature gauge keeps fluctuating up and down close to red?

http://technoanswers.blogspot.com/2012/01/temperature-gauge-keeps-fluctuating-up.html

How to remove Chevy idler arm?

http://howtobyme.blogspot.com/2012/01/how-to-remove-chevy-idler-arm.html

AUTOMOTIVE EMISSIONS?

http://schematicsdiagram.blogspot.com/2011/12/automotive-emissions.html

AIR POLLUTION?

                

Bank 2 Sensor 1 Heater circuit Failure?

http://schematicsdiagram.blogspot.com/2011/12/bank-2-sensor-1-heater-circuit-failure.html

Left bank sensor running lean?

http://repairhelpcenter.blogspot.com/2011/12/left-bank-sensor-running-lean.html

Car cranks, then run for second and then quit?

http://repairhelpcenter.blogspot.com/2011/12/car-cranksthen-run-for-second-and-then.html

How to replace Starter on Infiniti Q45?

http://schematicsdiagram.blogspot.com/2011/12/how-to-replace-starter-on-infiniti-q45.html

Where is Radio Fuse located on 2007 Dodge charger?

http://schematicsdiagram.blogspot.com/2011/12/where-is-radio-fuse-located-on-2007.html

Relearn Theft deterrent module?

http://technoanswers.blogspot.com/2012/01/relearn-theft-deterrent-module.html

Buick theft deterrent module Relearning?

http://howtobyme.blogspot.com/2012/01/buick-theft-deterrent-module-relearning.html

Trunk button Not Working on Buick car?

http://schematicsdiagram.blogspot.com/2011/12/trunk-button-not-working-on-buick-car.html

EGR Hoses melting?

http://repairhelpcenter.blogspot.com/2011/12/egr-hoses-melting.html

Location of Freeze Plug on 1998 Ford Expedition?

http://schematicsdiagram.blogspot.com/2011/12/location-of-freeze-plug-on-1998-ford.html

Car Engine Stalls While Driving?

http://schematicsdiagram.blogspot.com/2011/12/car-engine-stalls-while-driving.html

Engine will not crank after relearning Theft deterrent module?

http://howtobyme.blogspot.com/2012/01/engine-will-not-crank-after-relearning.html

Problems with the rear defroster?

http://schematicsdiagram.blogspot.com/2012/01/problems-with-rear-defroster.html

DIC says "COOLING FAN FAULT"?

http://schematicsdiagram.blogspot.com/2011/12/dic-says-cooling-fan-fault.html

How to remove Front differential?

http://howtobyme.blogspot.com/2012/01/how-to-remove-front-differential.html

Chevy NAV disc slot Location?

http://schematicsdiagram.blogspot.com/2012/01/chevy-nav-disc-slot-location.html

No power due to weak turbo?

http://schematicsdiagram.blogspot.com/2011/12/no-power-due-to-weak-turbo.html

1 comment: