Abs, tcs off & service light, fuel & temp guage fluctuation, ?c305?

[Alkaline999]

Abs and tcs off and service tcs lights on. Fluctuating fuel and temp guages. Also getting code for evap canister purge valve solenoid. Problems were same but worse. Ive been under the van, 02 montana, disconnected, inspected, cleaned, dielectric grease, etc. Problems with engine light went away. Guages seemed to be more responsive and accurate. Now it seems to be as was before. Also, hesitant, hard starting. Starter solenoid? Radio doesnt power off when drivers door is closed, but does when passenger closes. Immediately after starting, CD play cycles or makes some unusual noises. Also, weird toggle switch installed by drivers right leg. Cant notice changes when on or off, other than radio stations go to static. Lastly, alot of leaking and deposits at bottom of rear shocks, self levelling with pump in rear. Doesnt work. Options? If anyone can help with part numbers for the c305 nightmare and the rear shocks without air compatible with my model, it would be greatly appreciated. Thanks

 

[sergeimoskva]

Hi !
On the issue of connector C305, read here ...http://www.automotiveforums.com/t1111788-multiple_codes_here_is_our_solution__.html
On the issue , of rear shock absorbers, see here ...http://www.rockauto.com/en/catalog/pontiac,2003,montana,3.4l+v6,1411007,suspension,shock+absorber,7556

P.S. ... some pictures