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Why is my c15 cat engine popping and have strong fuel smell

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Posted on Jan 02, 2017

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pontelemon
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SOURCE: Infinity I30 1996 - car almost dies - strong fuel fumes smell.

Fuel filter replacement.

Posted on Mar 31, 2009

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98 buick regal has a strong gas smell


Do you know what fuel pressure regulator is ? These like to leak when they get older !
The cartridge type fuel pressure regulator (1) is a diaphragm-operated relief valve (6) with fuel pump pressure on one side, and regulator spring (2) pressure, and intake manifold vacuum on the other side. The regulators function is to maintain a constant fuel pressure across the injectors at all times. The pressure regulator compensates for engine load by increasing fuel pressure as engine vacuum drops.
The cartridge regulator is serviced as a separate component. When servicing the fuel pressure regulator, insure that the O-ring backup, (3) large O-ring, (4) filter screen, (5) and small O-ring (7) are properly placed on the pressure regulator.
It's located on the fuel injector fuel rail !


Search from over 10 Million Auto Parts

Jul 06, 2015 | 1998 Buick Regal

2 Answers

1989 Bronco II smells like gasoline after I drive it. Any idea what is causing that?


If this vehicle has fuel injection which i think it could as cars in europe were fitted with cats from 92 but this is a 89 --but its american and if built to conform with californian regs then it could have a cat and fuel injection .if so check the O2 sensors as one of these faulty will allow the engine to overfuel .in all honesty i would need my head in the engine to know exactly whats wrong

Jan 04, 2015 | 1989 Ford Bronco II

1 Answer

I have a 1994 oldsmobile 88. I park my car front side up on driveway. I dont know why this would make a differance but this is when car really acts up. I try to start and it starts but immedietly losses...


check you exhaust. you may have a damaged cat or a broken baffle in the exhaust eather of these will stall the engine and you will have a strong smell of fuel.

Oct 09, 2012 | 1994 Oldsmobile Eighty Eight

1 Answer

I am driving a 2006 KB 250 fleetside, just over 101250km. This is my first diesel vechile and i`m abid worried about my fuel consumption. Done a trip to luderitz recently and used about 38 lts for 390 km...


The injectors have o-rings that will wear and cause fuel leak into engine and cause same smoke problem ,but glow plugs are only for engine firing.........you can change o-rings only but if it has lot of miles i would do injectors...
however make sure the fuel rail isnt leaking at injector connection.also check exhaust for excessive heat or noise inside cat.converter if you can shake it.....some come apart inside.....
it would be worth having the engine scanned to make sure 02 sensors are good..they control air/fuel mix and if oxygen level is incorrect it will burn more fuel and sometimes fuel scent but not very bad.

Feb 19, 2011 | 1985 Isuzu Pickup

2 Answers

Hi my bmw 316i 1600 with a e36 engine is only doing about 10 to the gall, any ideas, also notice a strong smell of petrol when first starting car and smells stays there for about 15 mins, and also notice...


run the fault codes
problems with running rich include:-
injectors not working properly
excessive fuel pressure
leaking injector seals
heated oxygen sensor failure ( they are located in the exhaust manifold /pipe before the cat converter and are used to read the exhaust gas composition and report to the ECM which adjusts the air/fuel mixture accordingly
ambient air /BARO sensor which report the air temp/pressure to again allow the ECM to set mixture
The strong fuel smell can be from fuel leaks , flooding --as stated with injectors or an EVAP system vent solenoid problem
The first 4 possibles would be the most obvious place to start especially with a fault code reading

Nov 19, 2017 | BMW X3 Series Cars & Trucks

2 Answers

What are the symptoms and causes of a cloged catalytic converter


Symptoms are rough running, stalling, poor gas mileage, and especially a strong smell of rotten eggs (sulfuric acid). The main cause is old age, but poor/cheap/contaminated fuel can also be a contributing factor.

Bill B

May 07, 2010 | Oldsmobile Cutlass Calais Cars & Trucks

1 Answer

Strong fuel smell from AC


If you're experiencing a strong fuel smell, there's most likely a leak in the engine compartment. The AC will cool incoming air unless the "recirculate" button is pressed. The incoming air is what has the fuel smell, indicating a leak in the engine compartment. CAUTION: leaking fuel in the engine compartment is extremely dangerous and can lead to a fire. Please have the car diagnosed by a professional immediately.

Oct 25, 2009 | 2004 Volvo XC90

2 Answers

Smelling Gas from inside my 2000 Toyota Avalon XLS


the smell of gasoline in the drivers area is a very serious thing.
theres a good chance you have a fuel leak on the engine which could ignite and put you in dire straights.
open the hood and remove the air cleaner, then start the engine and inspect for any fuel leakage.
listen for any popping noises in the engine compartment, if its popping you may have a blown exhaust manifould gasket, you would get gas fumes from this also.
check these items out and let me know
good luck and would appreciate your feedback.
thanks

May 21, 2009 | 2000 Toyota Avalon

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