2001 Blazer Lt No Start Sometimes

[mikewood31]

any one ever had this problem

 

The wifes truck won't start sometimes all lites are on everything works

then no crank. I can here the fuel pump power up as well

Play with the shifter on the colum and it starts everytime.

 

She had one reverse lite burned out which lead me to maybe the

park neutral position switch ,so I changed it . The truck started great

for a bout a week now its doing the same thing again

 

Blazers are Bad for the ignition switch going haywire I know

but we don't see any of the symptoms that I have read it causes

besides no start sometimes,dealer couldn't find anything wrong either,

and when you turn on the key power goes to the PNP switch and the transfer case module, if the truck is in park or neutral it goes to the starter solenoid

There are relays and fuses of course but they all get power from the PNP switch

and if any of them were gone the truck would not start period.

I have checked them all as well just to be sure but they all seem fine

and as soon as you shift it out of park and back it starts

any ideas suggestions would be appreciated.