twitchee2
Member
I drive a 3rd gen but my buddy has a 2nd gen that he found out doesn't go into 4wd in the middle of a blizzard. I could use some help trying to help him sense i am not very familiar with the 2nd gen 4wd system.
What ive found so far. Transfer case goes in H4, L4 H2 no problem but the front does not engage. There is no vacuum going to either hose at the add solenoid on the diff. there is no vacuum going to the vacuum tank. the 4wd valves has the correct resistances. i checked to see if the valves had any voltage change at the plug and it did not change, stayed at 0volts. that was all i had time to check.
Couple of questions. Where is the vacuum sourced from? I pulled the vacuum hoses of both ends of the filter and didn't get any vacuum on either side. Followed it to the engine where there was no vacuum either. It seems like it went under the intake manifold but i couldn't tell. Ive looked at the pdf of the FSM but its hard to tell where i should even start. Any advice would be great. I don't have the truck with me so i cant just go run out and check something but anything would help.
edit: for got to mention 3.0 5spd
Thanks
What ive found so far. Transfer case goes in H4, L4 H2 no problem but the front does not engage. There is no vacuum going to either hose at the add solenoid on the diff. there is no vacuum going to the vacuum tank. the 4wd valves has the correct resistances. i checked to see if the valves had any voltage change at the plug and it did not change, stayed at 0volts. that was all i had time to check.
Couple of questions. Where is the vacuum sourced from? I pulled the vacuum hoses of both ends of the filter and didn't get any vacuum on either side. Followed it to the engine where there was no vacuum either. It seems like it went under the intake manifold but i couldn't tell. Ive looked at the pdf of the FSM but its hard to tell where i should even start. Any advice would be great. I don't have the truck with me so i cant just go run out and check something but anything would help.
edit: for got to mention 3.0 5spd
Thanks
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