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1994 mustang 3.8 v 6 runing rick can smell unburnt gas car runs good no leak that you can c i changed plugs and wirs

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  • snook495 Jul 23, 2009

    it was a bad computer

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 1054 Answers

SOURCE: gas smell outside of car. unable to see any leaks, car runs fine

Hows your gas milage or do you have any check engine lights come on?Usually if theres no leakage signs its an indication of the evap system leaking.That is recycling of the gas fumes.Its a vacuum system that is now manditory on cars.Thats usually rhe answer when theres no leaking happening.After driving awile open your gas cap,see if you get a vacuum sound when you open it.

Posted on Dec 15, 2008

  • 124 Answers

SOURCE: rough idling sluggish acceleration

These 4.3L W motors are common for fuel leaking inside the plenum causing them to run rough and smell like raw fuel. The fuel pressure regulator leaks internally, also the injector spider leaks and the two fuel lines feeding the fuel to the spider. You have to remove the plenum and look for the clean spot. Where the fuel leaks it cleans the oil off. Before you try this check your EGR valve. The EGR valves on these get stuck open with carbon and cause a rough idle. Remove it and look for the plunger it is a small round piece that you can push in and out, make sure it closes fully. You can also clean it with carb clean and they make a replacement gasket with a screen in it to keep chunks out of it. Start with the EGR because it is easier. The parts for under the plenum are available at most any parts store. If you have any problems just ask, and if you can not find the parts I will give you part numbers. Let me know what you find I will be back tomorrow.

Posted on Jan 07, 2009

  • 2 Answers

SOURCE: Very Rough Idle and sometimes cuts off while idling




sounds like bad Idle Air control valve Not Cheap


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Posted on Feb 21, 2009

Molson02536
  • 3854 Answers

SOURCE: Gas smell when starting and small dripage when back up from under engine

It sounds like the return fuel line is leaking. There are two fuel line and one is the high pressure line which goes to the fuel pressure regulator then to the fuel rails. There is then a return line from the fuel rail to the gas tank.
With the amount of fuel leak, it's going to be the return line since it's not that bad compared to the high pressure side. Follow the fuel lines from the drivers side around the steering shaft to the engine. The high side and low side (return) run side by side and you should see it leaking when the engine is running.
Good luck and hope this helps.

Posted on May 25, 2009

perpetually
  • 360 Answers

SOURCE: 1994 Gmc jimmy engine not runing smoothe

Check the timing.

Before you check the timing you have to disconnect a wire that is hidden underneath your carpet where the front passenger would put their feet...close to the firewall. It has a clip that easily lets you disconnect it.

As for the wiring diagram for that truck, you will need to buy a repair manual (Hanes, Chilton) from your local auto part store. It is several pages long, too much to try to explain here.

If you changed the distributor, you should also have changed the rotor and spark plugs. Also check your plug wires for arching. Make sure the wires are not touching anything metal. If they are not secured right, they will wear out very quickly from rubbing around.

Posted on Sep 14, 2009

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1 Answer

I have 1995 chevy lumina with the3100 engine. It starts fine but idle is rough and has loss of power and smells like unburnt gas.


How long since overall tune-up? Any applicable trouble codes?
The basics for a rough idle, check for a leak of some kind, fuel--egr--vacuum, something of that nature. Does it run ok off-idle?

Feb 16, 2017 | 1997 Chevrolet Lumina

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My van will barely start only if I push the gas pedal to the floor. And still then will die almost right away. I can smell tons of gas, Plugs are wet with gas too. I did change the o2s and have the same...


I don't think it is your O2 sensor especially from the catylatic, because you mention smelling like gas and presence of gasoline. "Plugs" hopefully referal to the spark plugs, try to trace where you see gasoline and where it is coming strongest from. This is a case of leaked fuel line, fuel rails, fuel injectors.
1) Trace the source of where it is wet, there maybe a leak somewhere and you car is not getting the amount of fuel pressure to combust and thus make the engine dies. 2) Check your fuel injectors, fuel line rail, could be leaking or become loosen and is spraying gas when the fuel line is pressured into the spark plug socket. 3) You may have a dead spark plug one or more, and isn't combusting the gasoline, thus creating no compression leading to engine dying. 4) Leaking head gasket. Best is tracing where the gas is spewing from. That should help.

Jan 29, 2011 | 2002 Dodge Caravan

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Have to push gas pedal to the floor for car to start. its an 89 gt mustang with the 5.0l. after it starts it runs fine, sometimes the engine light comes on when i get on it real hard. but there are no hard...


This would indicate a problem with the automatic choke. Putting the pedal to the floor creates the same effect as the choke when starting the car.

Jan 12, 2011 | 1989 Ford Mustang

1 Answer

1994 Ford Mustang blowing white smoke that smells like pure gas. Gas running straight through and getting about 5 mile per gallon.


Sounds like a blown head or intake gasket. Coolant in the oil is a sure sign. Another sure sign is loss of coolant with no obvious leaks.

Coolant in the cylinders will emit white smoke, and the fuel smell is probably raw fuel passing through because it can't ignite due to the coolant.

Pull the dipstick and if the oil looks milky, then it is a blown gasket, or worst case scenario, a cracked head or block.

Jun 04, 2010 | Ford Mustang Cars & Trucks

1 Answer

My 97 s10 runs rough sometimes and smell gas


change the 02 sensor, that is a common problem of why a car would run rough and smell of unburnt fuel

Mar 20, 2010 | 1997 Chevrolet S-10 Pickup

1 Answer

Fixed ac problem now smell gas inside vehicle


burnt or unburnt gas? if burnt gas smell look for bad manifold or manifold to pipe (donut) gasket.
if unburnt smell look for gas line leaks

Jul 28, 2009 | 1998 Ford Windstar

1 Answer

1995 mustang 3.8 v6 sputters on take off and at a stop in drive but not in nutural no sputer and when it gets going it runs great


ford had 3.8 engines one with distributor cap .and one with distributorless.so if you got distributor engine change distributor cap and rotor spark plugs and wires.also coil.if you got distributorless change plugs and wires .replace coil packs if they have alot of miles on them.replace fuel and air filter.also run good gas.like exxon -shell -marathon - texoco- good gas make car run better.

Jun 22, 2009 | 1994 Ford Mustang

1 Answer

1994 Gmc jimmy engine not runing smoothe


Check the timing.

Before you check the timing you have to disconnect a wire that is hidden underneath your carpet where the front passenger would put their feet...close to the firewall. It has a clip that easily lets you disconnect it.

As for the wiring diagram for that truck, you will need to buy a repair manual (Hanes, Chilton) from your local auto part store. It is several pages long, too much to try to explain here.

If you changed the distributor, you should also have changed the rotor and spark plugs. Also check your plug wires for arching. Make sure the wires are not touching anything metal. If they are not secured right, they will wear out very quickly from rubbing around.

Jun 09, 2009 | 1994 GMC Jimmy

1 Answer

Gas smell when starting and small dripage when back up from under engine


It sounds like the return fuel line is leaking. There are two fuel line and one is the high pressure line which goes to the fuel pressure regulator then to the fuel rails. There is then a return line from the fuel rail to the gas tank.
With the amount of fuel leak, it's going to be the return line since it's not that bad compared to the high pressure side. Follow the fuel lines from the drivers side around the steering shaft to the engine. The high side and low side (return) run side by side and you should see it leaking when the engine is running.
Good luck and hope this helps.

May 25, 2009 | 1994 Chevrolet Beretta

2 Answers

Engine runs terrible


Fuel line or fuel pressure regulator leaking, both are inside intake.

Dec 30, 2008 | 1994 Chevrolet S-10 Blazer

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