Question about Mitsubishi Montero

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Cold weather causes rpms to increase too high and eventually floods and won't restart for a couple of hours or until after the gas in the carburetor evaporates.

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Weird one this,carb??how old is this car ?is it a classic ....well i think this could be the fuel cut off valve in the top of the carb or a dodgy float thats got a hole in it and its full of petrol and not closing the fuel shut off valve.a lot of these cars used a rubber seal on top of valve body and maybe that is rotted with age.check it out first anyway

Posted on Nov 06, 2008

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How to adjust the fuel and air mixture on a 1982 ford 4.9 six cylinder, carter carburetor.


There should only be 1 screw located at the base of the carb facing outward.

The method I use requires a tachometer. If you don't have a tachometer then you can use the "by ear" method, though it's not as accurate.

With the engine off, start by turning the screw all the way in, then back it out 1 and 1/2 turns. This usually give you a baseline to start with.

Start the engine and get it up to operating temperature, make sure the choke is fully open, and have the air cleaner and all vacuum lines installed.

Using the tachometer (or ear) turn the screw (usually out) until the RPMs increase. If they don't increase by turning the screw out, then try turning it in.

Eventually the RPMs will stop climbing while turning the screw (as said earlier, usually out).

THEN turn the screw the opposite direction (usually in) until the RPMs JUST start to drop off. That should be real close to the optimum setting.

This setting is ONLY for the base idle air/fuel mixture and is NOT for anything else.

Hope this helps.

Feb 16, 2015 | 1982 Ford F 150

1 Answer

95 toyota t100 starts when cool then shuts down after running about an hour. Won't restart for 2-3 hours. Runs well until shutdown. 3.4l V6.


Possibly the fuel/mixture sensor thinking that the engine is cold and needs more fuel causing the engine to flood?

Aug 05, 2014 | 1995 Toyota T100 Xtracab

1 Answer

2002 dodge ram won't start if you step on gas peddle before starting it. What causes this? If you wait a couple of hours it will then start


Fuel injected engines don't need to be pumped before starting, if you do flooding can occur. Make a conscious effort NOT to touch the pedal until after you turn the key to the start position and the engine actually starts.

Apr 04, 2014 | 2002 Dodge Ram Maxi

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My 2004 Hyundai Sonata will not turn over after being outside all day at work (it is cold). The car tries to start, but it sounds sluggish. I tried jumping the car, but it didn't help at all. I have had...


it may be a weak battery if when jumping it the engine didnt spin fast,but i belive the first time the battery was weak and trying to start may have flooded it with the cold weather, have the battery tested and replace it if not good then try holding the gas pedal down to floor like the older cars and hold it until motor gets going then slowly let up as rpms rise, you may have to crank a while.

Jan 08, 2011 | Hyundai Motor 2004 Sonata

1 Answer

I have a 1990 chevy lumina runs great until you turn it off and restart it acts like its not getting gas


Hard starting? Try holding accelerator to floor until it catches then let off immediately, so as not to over-rev engine. (As it was done for a flooded situation with carburetor.) You may be getting leak-by on one or more injectors, causing it to act like a flooded situation.

Feb 24, 2010 | 1990 Chevrolet Lumina

2 Answers

Experienced recent cold weather. Car will not


It's flooded like you say.
If it's really flooded, you'll have to remove plugs and dry them off.
Install them.
Now when you crank engine, hold gas pedal to floor.
That will stop gas from spraying into engine.
You need to get the gas out of the engine for it to start.
Crank for 20-30 seconds with pedal to floor. Do this 3 times waiting 2-3 minutes inbetween cranks.
The starter needs to cool down.
Then after that start normally and see if it will start.
Remember if it will not start after 2 attempts, then the possiblity of it flooding is there and you'll have to clear out the gas by holding the pedal to the floor again.

Jan 15, 2010 | 1993 Oldsmobile Eighty Eight

1 Answer

Isolated hard starting


It sounds like your carburetor is flooding, check to see if the choke is set too tight.
to do this, when the engine is cold, remove the air cleaner assembly, push the gas pedal one time to the floor. in the carburetor throat is a flap, this flap closes as engine cools so the engine receives more fuel for cold weather starts, the flap is at the top of the carb. this flap should have about a 1/8" gap between the throat wall and the flap when it is fully closed, if if is completly closed it will give the engine to much fuel and cause it to flood. if you need to adjust just follow the linkage that the flap is attached to, and it will lead you to the choke housing, this is where you can adjust it.
once this is done start the engine and let it warm up, as it warms up this choke flap should open completly up in a vertical position.
if it doesnt, then you probably have lost power to the choke housing or your heat tube that comes from the exhaust manifold to the choke housing is bent, off or missing. most likely yours will be electric.
i hope this helps, good luck

May 20, 2009 | 1999 Chevrolet Malibu

1 Answer

Carburator tune up of charadade 1992 sedan. The engine is running too fast while idle at 1200 r.p.m.


Before you start check the status of your choke. One that is stuck on will cause a high idle. If the choke checks out, proceed to the following:


You should have what's called a 2 needle carburetor. A larger screw adjustment for idle, and a smaller for high speed.

Start by adjusting your low speed (idle) needle until you reach the desired idle. I prefer about 850rpms. Do this with the engine running and adequately warmed so that your adjustments are not thrown off by the automatic choke.

Next slowly open up the high speed needle. As you open it your idle speed will gradually increase. Adust it in 1/8 turn increments, pausing after each adjustment to allow the changes to take affect. Keep opening it until you stop increasing your rpms, then take it back 1/8 of a turn.

Next readjust your idle mixture screw so that your idle is back down to 850rpms.

Apr 29, 2009 | 1992 Daihatsu Charade

1 Answer

New battery in 03 VW Passat, engine turns but will not start.


Possible flooding, cold weather can freez open injectors causing them to leak into the cylinders. Press the gass pedal all the way to the floor and crank the engine for no more than 60 seconds. The cylinders will clear themselves allowing proper mix of air/fuel and should start easy. If that does not solve please specify if the engine is 1.8l or 2.8l.

Jan 18, 2009 | 2003 Volkswagen Passat

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