Question about 1994 Nissan Maxima

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Gasoline smell, blowing gas out of exhaust, gasoline smell in engine oil

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Have the head checked out

Posted on Oct 02, 2009

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02 Buick Park Ave has a gas smell on dipstick plus white smoke Out exhaust sometimes engine jumps lifter ticks and dic and instrument panel not working no visible coolant leak or chocolate like substance...


Gasoline is entering and contaminating the engine oil. It can only enter through the leaking injectors.
Inspect, clean or replace the injectors and replace the engine oil immediately.

Feb 24, 2014 | Cars & Trucks

1 Answer

Smel of fuel throgh the exhaust


Gas Smell from Exhaust Sometimes you may find that the exhaust smells like gas. This is normally a problem with the air and fuel mixture as your fuel injector may be sending too much gas through the engine and not all is burning. This can easily be fixed by having your engine properly tuned. You also may not be using the correct brand of gasoline. Therefore the engine and exhaust are not working properly which results in gas like odors emerging. You may also find that the fuel injector is clogged and needs cleaning. Another cause of this gas smell is a stuck choke if you have a carburetor.

Dec 09, 2013 | 1980 Peugeot 305

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When driving i can smell gas in my 2000 lexus es300


possibly your O rings which isolates fuel injectors from engine block are getting old and letting gasoline go out. it is very dangerous since it can cause fire. do not drive.

another cause is broken loose or cracked fuel lines. this is equally dangerous since it is under hood close to hot exhaust manifold.

if smell is from exhaust manifold, which means not the smeel of gasoline but exhaust fumes, this can be caused by broken exhaust manifold or a crack on it or problematic exhaust manifold gasket.

Nov 18, 2011 | 2000 Lexus ES 300

1 Answer

Gas in the oil


When a fuel injector is stuck open, the fuel will flood out. Gasoline will definitely get into the oil when this is the case.

If the fuel pressure in your car is too high (above 7 psi) that may cause gasoline to get into the engine oil.

Gas could also leak into your intake manifold if there is a carburetor problem.

An inoperative injector system can also cause this problem, because if the engine is not firing appropriately, the gasoline will end up running down the walls of the cylinders.

Check to see if the float in the gas tank is rising the way it should be rising or if it needs an adjustment. You will not be able to look at your gas gauge and get an accurate reading If the float is not functioning properly.

Your engine may be running rich, with too much gas going into the engine and too little air.

Check to see if the oil level might be really high. This can also cause trouble

Two ways to tell if you may have a problem with gas in your engine oil are:
1. If you start to smell a strong odor of gasoline while you are driving.
2. You notice white clouds of smoke coming out of your tailpipe.

If a large amount of gasoline does get into the engine oil, change the oil immediately upon fixing the problem that has allowed this to happen.

Jul 08, 2011 | Lexus ES 300 Cars & Trucks

1 Answer

Engine fluds when you press the gas pedal


are you sure its flooding heres a way to see if its truly flooding or if theres another problem your not aware of first start the "crossover" meaning the trailblazer keep it in park and step on the gas if it boggs down and you have a stong gasoline smell comming from the exhaust then its flooding if it doesnt smell like gasoline then its a completely different problem

Feb 07, 2011 | 2002 Chevrolet TrailBlazer

1 Answer

1996 cavalier; When I start the car; it smells like gas when the heater is on. The man at mufflerman changed the catalitic converter for $400 but it's still the same Betty


Your fuel pressure regulator may have gone bad and needs to be replaced if it's gas you smell. I am guessing you mean gasoline and not exhaust gas or oil burning. When the fuel pressure goes bad, it tends to leak gas. There is a rubber diaphragm that breaks and that is when the gas starts to leak on to the engine giving you the smell of gas only when the engine is running. The fuel pressure regulator is located on the fuel injector rail and can be replaced in 10 min with common tools and cost around $15.00 at Auto Zone or NAPA auto parts store. Good luck and keep me posted, be glad to help you get your car running 100% again soon and be safe.

Jan 06, 2010 | 1996 Chevrolet Cavalier

2 Answers

I have a 1997 chev lumina with 107000 miles on it. the car blows bluish smoke from the exhaust pipe and smells like gasoline. When I smell the oil dipstick it also smells like gas, would this be a bad fuel...


Dumping to much gas..could be many problems, an some that you mentioned, like a faulty fuel injector..you need to check each one with a noid light, and see how they pulsate, and see how they spray..you can do a compression check on the cylinders to see if there is a leak in the cylinder head..but your main problem maybe, that your piston rings are worn out, and instead of the gas getting ignited in the cylinder, some of it is getting by the piston rings and going down to the oil pan..and you may have oil getting up in the cylinder wall, and that's what is giving you the bluish smoke..So just do a compression check 3 different times, and write down your readings...Check your injectors, to see if one, or more is dumping to much gas...Goodluck

Dec 04, 2009 | Chevrolet Lumina Cars & Trucks

1 Answer

2004 mazda rx-8-smell of gas on my oil dipstick


bad apex seals in the engine introduction blow by or extremely overrich condition.

Dec 08, 2008 | 2004 Mazda RX-8

1 Answer

4jb1 engine


I can tell about a couple of odors from oils that are quite indicative of the places where they oil is leaking into the exhaust though.

You've got a few internal places where oil can get into the engine and even some can get into the combustion chambers. They have distinctive odors and can really help diagnose the cause or reason for the oil consumption.

First let's start with the "sweet-smells".

This means that the oil have gone through the combustion process along with the engine's fuel (gasoline or diesels too!). It is about the same smell you get whiffing the exhaust on a 2-cycle engine with gas-oil premix.

Places where this CAN happen:

1) Cylinder walls ie; piston rings, worn or broken.
2) PCV system where the oil is sucked into the manifold under vacuum and is entrained into the combustion chamber in the normal air-flow to the engine for combustion.
3) Intake runner-to-head surface gasket(s) where the intake can actually **** oil from the cam tray area or the inner valley between the heads and the intake manifold.
4) Occasionally from changing spark plugs in "well" type plug chambers that let the plug get very close to the head through the head casting. Taking a plug out and letting the collected oil fall into the cylinder is usually a temporary situation, but can scare you when it happens.
5) Cracked head or blown head gasket: this usually has to happen where the head has a high pressure passageway for the oil to travel through the head to get to a cam tower on top of the head.
6) Now - here's something that's gonna get debated, fer sure! ONLY the intake valves can leak past their stem seals and allow oil to travel down the stem onto the combustion process. Remember that I am speaking or "sweet" oil smell here.


Now some of the "not sweet" or bitter oil smell:

1) Exhaust guides or stem seals on the EXHAUST valves ONLY can cause a very acrid smell of nasty, eye watering and cough-inducing stink.
2) CVCC or pre-combustion chambers can also cause this problem. The Honda CVCC engines were notorious for this! The auxiliary valve can leak oil into the pre-chamber and then it opens the valve and dumps the burning mess into the main cylinder head area and the results are a bad BAD stink and lots of white/blue smoke.
3) RARELY...very rarely the exhaust port AFTER the exhaust valve seat can become perforated and allow oil to get into the exhaust stream. It does NOT burn here - rather it just cooks-off with a very bad smell.

So-o-o-o

Acrid oil smell
- the oil has NOT gone through the combustion process in the cylinder head but is rather "cooked" into a stinky odor. It may or may not smoke too much too.

Sweet oil-burning smell - oil that has been burned as part of the combustion process in the combustion chamber on one or more or even all cylinders.

Sep 16, 2008 | 1993 Isuzu Trooper

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