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Old 12-17-2004, 09:15 AM
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BB1970 BB1970 is offline
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Re: Re: cold startup idle?

Quote:
Originally Posted by StealthModifier
My car usually runs to 2000 rpm when i first crank it up, ive had it around 2200 rpm b4. but after 5 mins its back down to 700-800 at normal temp. ive also noticed that the transmission has to hit a certain temperature b4 it will shift to 4th gear. when i leave in the mornins it will shift up through the gears and stop in 3rd gear... at 55 mph its at 2500 rpms, then after goin 3 miles down the road it will finally shift into 4th...does any1 else with an automatic have this problem? i think there supposed to be like this tho

that is a common problem with the mitsubishi automatic gearbox.

it relies on engine temperature to function properly and i bet my last uk pound that your thermostat is not working properly or broken. the thermostat has a tendancy to split causing it to not close fully hence not letting the car warm up as fast as it needs to and as a result 4th gear will not function until it reaches operating temperature.

basically, change your thermostat and it will be a whole lot better.
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1993 Mitsubishi GTO Twin Turbo (RHD) NOW SOLD!!!


9b turbos with manual boost valve mod set @14psi
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