Question about 1991 Mitsubishi Mighty Max

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1991 mitsubishi might max hard to start when its cold out side.the colder the harder.now it wont start at all and its real cold!

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Problems with the choke, to low fuel float level in carburator, timing to retarded or just problems with your battery or starter if it doesnt crank fast enough

Posted on Dec 08, 2009

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Posted on Jan 02, 2017

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1991 mitsubishi mighty max want start in cold weather but will when its warm outside what could be the problem?


if this is carb motor than it needs a manual choke that mounts on inside of lower dash, the kind you see on lawn mowers,,,push and pull.

Mar 11, 2011 | 1991 Mitsubishi Mighty Max

1 Answer

1991 Mitsubishi Mighty Max 2D 4X4 V6 3.0L No Start.


you can get pressure specs from your local parts dept, and check injector signal with a noid light

Apr 23, 2010 | 1991 Mitsubishi Mighty Max

1 Answer

Wont start in cold


That is how the automobiles work. hard to start when cold.
Of course if this is not normal for you, maybe a new battery might help.

Dec 22, 2009 | 1995 Mitsubishi Mighty Max

1 Answer

91 mighty max wont start when cold


Next time when cold and it will not start remove a spark plug or two and see if the engines flooded. If so there are two things that come to mind; 1, worn injectors, leaking as engine sits with time causing difficult starts 2: bad oxygen sensor, if failed engines tend to run rich and the ECU may have your injectors pump heavy amounts of fuel to keep from running lean; often times you'll see poor fuel MPG if O2 sensor failed.

I hope this may have assisted you,
Tom

Oct 30, 2009 | 1991 Mitsubishi Mighty Max

1 Answer

Torque specs for mighty max


Per my Chilton's manual tehe bolts should be (cold engine) 65 to 72 FT. Pnds., the cam shaft bearing bolts should be 8x25 = 15 - 19 Ft pnds and the 8x65 should be 14 - 15 Ft Pnds.

The sequence is as follows for the (10 ) head bolts:

7 - 5 - 2 - 4 - 10

9 - 3 - 1 - 6 - 8

I hope this may help,
Tom

Oct 12, 2009 | 1991 Mitsubishi Mighty Max

1 Answer

Computer in 1991 mits pick up


I recently replaced the ECU in my 91 mighty max. If you remove the glove box you will see it on the right hand side.

Feb 28, 2009 | 1991 Mitsubishi Mighty Max

1 Answer

Wont idle


sounds like dirty fuel check your fuel filters see if ther blocked

Jan 07, 2009 | 1991 Ford F250

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