Question about Pontiac Grand Am

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I have gas fumes when i accerlarate or turn on air condition

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Sounds like a gas leak under the hood, most likely a cracked rubber fuel line... easy fix but you may have to look hard to find out where it is leaking.. This is a dangerous situation to be driving this vehicle as gas is leaking and can be ignited by a hot exhaust or header if it drops down on it.. Other than that it is a simple fix for just the cost of the gas line..

Posted on Mar 25, 2011

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Posted on Jan 02, 2017

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Mazda 2008 mx5: I am getting engine fumes coming into the cabin via the cabin air intake.


There are a couple of things to consider...

First the cabin air intake is generally in a tray that once the engine compartment hood or bonnet is closed should be almost completely isolated from the engine compartment due to the rubber sealing strip and other rubber components. Perhaps some of these are missing or in poor condition. If heater intake water drains are fitted they should be self closing...

In good condition normal smells or fumes should not get past those seals.

The other consideration is where are the fumes coming from? Unless the engine has an exhaust or oil leak or a breather problem the amount of fumes generated to leak into the cabin, even if the sealing isn't in good order, should be minimal.

Oct 22, 2016 | 2008 Mazda Mx 5 Miata

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Traveling to texas i hit a semi-tire in the night and it tore some box near the gas tank and the engine light come on, wondering if it that hurt engine or will it affect oil, or what heck was that box, was...


Sounds like you got the evap canister box. Only used as a storage for gas fumes so they dont escape into atmosphere. Under correct conditions a switch will activate allowing those fumes to travel to the engine where it is burned. Try to locate and plug all loose lines from the box to contain fumes. After that you should be fine to continue your trip. The light will stay on until that component is replaced.

Feb 18, 2011 | 2006 Saturn Vue

1 Answer

Where is the evaporator hose


if you mean the evaporator hose for the air conditioner .. then observe under the hood .. you will see two pipes coming from inside the car side by side .. one is large and one is small .. the evaporator is the thing inside your heater compartment that cools the air for air conditioning .. the hoses could be called the "evaporator hoses" . the large hose is the "low pressure" side and is where the refrigerant comes out of the evaporator .. the smaller hose is the high pressure side and thats where fluid under high pressure enters the evaporator

now there is also an evaporitive emission control system on your car .. thats where gas fumes that evaporate inside the gas tank are collected in a charcoal cannister temporarily .. when the car is running those fumes are drawn into the engine and burned along with the fuel ... there is a hose that comes from the gas tank to the cannister and you could call that an evaporation collection hose ..

Jul 05, 2010 | 2002 Dodge Stratus

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Hi just wonder why my 2000 cavilier would still blow hot air when the heater is shut off


The vehicle is probably engineered that way, years back GM introduced what they called Astro ventillation tyo the Chevette line of vehicles, I had just started working for a dealership that was going to be slandered all over the news because they couldn't repair the vehicle from blowing warm air even though the fan and heater slide were turned off.
This was my first job in the dealer after the problem went around the shop for a month or two, I found an article paragraph on the first page of our in house reair manual for heater and air condition trouble shooting Chevrolet Chevette, it stated that the car with the key on whether running or not would keep a constant flow of air throughout its outer body skins called an Astro Ventillation system and its purpose was to keep any toxic and/or flammable gas fumes out of the vehicles cabin space.
It was around for a long time and probablyl is the reason why you have this same condition of warm air flow, its a constant turning of the heater blower fan.
Happy Motoring!!!

Jun 07, 2010 | 2000 Chevrolet Cavalier

2 Answers

In the summertime mostly, the gas tank will build up pressure and make huffing like noise, release the gas cap and it lets out air whats wrong?


As bennet 860 replied the escape of air when you loosen the gas cap is normal. The whole evaporative system is designed to keep gas fumes from leaking into the atmosphere. While you are driving the EVAP controls bleed those trapped fumes into the engine combustion. All this is designed to help clean up the air we breath.
Gasoline is always trying to evaporate, so your Town Car is just keeping the fumes enclosed.

Feb 27, 2010 | 1997 Lincoln Town Car

2 Answers

Gas smell in 97 q45


You need to bring the vehicle back to the garage that worked on it asap and have them check it out. It sounds like they are responsible since the gas fumes started when the fuel was changed. Most are inside the gas tank. There is a lock ring on the tank w/ a gasket that must be removed for access. Chances are they either didn't tighten the lock ring sufficiently, or the gasket is crimped or out of place, allowing the fumes to escape. Leave the car outside until you bring it to the garage, as fumes can collect if parked inside and cause an explosion it a spark is present-like turning on a light switch or starting the car. If the reason for the fumes is as I described, the garage should fix it at no extra charge to you.

Mar 25, 2009 | 1997 Infiniti.5 Q45

1 Answer

Gas fumes


chech the fuel pressure regulator,its black incolor and has a vacuum line to it.It will be in the fuel rail.start the van and pull off the vacuun line, if fuel comes out its bad.

Feb 01, 2009 | 1999 Oldsmobile Alero

1 Answer

Code 446 comes on and I smell gas


if that was the code for the purge vent solenoid i would say it is bad since you smell fumes. because that solenoid allows the vacuume from the engine while it is running to pull the excess fumes from the fuel tank and burn them off inside the engine. also might want to check lines under the hood associated with the solenoid to make sure excess air pressure from the fumes building up didn't blow a vac. line off. i would also check the condition of your fuel cap, if it doesn't seal good it could also cause a similar problem.

Oct 12, 2008 | 1993 Chevrolet S-10 Blazer

2 Answers

Why do they tell you not to overfill gas tank


The actual reason is maximize your fuel mileage.
The engineering is as follows:
There are times when the fuel injectors shut off when you are driving, like going down a long hill. There is no need for the injectors to "work", as you are coasting without giving it any gas. But, the engine will stall out with no injector action. So, how does Toyota keep the engine running? From the gasoline FUMES in the fuel tank. There is a tube on top of the fuel tank whch siphons the fuel vapours...The vapours then are stored in something called a charcaol canister, in which the "charcoal" absorbs the fumes from the tank, and, when coasting, the injectors stop injecting, and the stored fumes are admitted into the intake manifold thru a valve controlled by the Electronic Control Unit, or ECU. The fumes are used by the engine, thusly maximizing your mileage, other than losing them by letting them escape out from under the fuel cap. Now, to answer your question: If the vehicle is "overfilled", there is no place for the fumes, other than in the top of the filler neck. And the siphon tube is on top of the tank. The ECU sees the overfill condition as a "blockage" in the fuel fume vent line (only fumes should be in this tube), and said "blockage" will transmit this to the ECU, thru a sensor, & turn on your check engine light. The overfill actually "lies" to the ECU, even though there is nothing wrong. Best thing to do: When filling the tank, stop after the handle clicks off.
I hope that I have explained this to your liking.

Sep 26, 2008 | 2007 Toyota Tundra

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