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Yes,it was the transmission vacuum valve,on the IP.Several of our M1009's had the same symptoms.Just disconnected it,connected vacuum pump direct to transmission line.Wow,what a difference,shifts at low rpm now,very smooth.Cant believe I drove this long with this BS,but the other trucks were all...

M1009 owners,how does your tranny shift?..mine has always shifted rather high,rpm wise.I understood this to be normal,still I find myself letting off the accellerator pedal at 30 and 60 kmh so vacuum will be higher allowing it to shift sooner.On the tranny there is a vacuum line that goes to a...

Someone suggested this method to bleed air out of injectors,is this safe?..I don't want to blow a head off.Do you still glow the plugs?..how much do you spray in?..Would I still need to crack a few injectors?..it's my understanding that they can't pass air.

Anyone know what the purpose of having pressure in the tank is for?..On my M1009 I've been cracking the cap when I park as a temporary fix to my"air in injection system"gremlin,worked for a month,coming home juiced on tequila,forgot,dies in morning.Some guy on forum suggested drill a small...

OK,heres the mind-bender,if I open the gas cap releasing the pressure after I shut it down,It continues to run fine.If I leave it alone,in the morning I lose prime and it dies,WTF!!!...Checked everything multiple times,truck runs great,while opening gas cap is a small price to pay for forgoing...

Hi all,owned 86 M1009 for 2 years,has 85,000 miles,reliable until now.Started in morning ran for a few seconds,idle started fluctuating then died.Called my guru,sounds like lift pump,threw one on,bled injectors,2 days later same thing.Could be an clogged fuel filter,OK,threw on on,did the bleed...