Wont start .
Trailblazer will attempt to turn over but then it dies.. it has back fired a few times but never fully turns over. I changed the camsensor sylonoid. Fule Filter. Oil filter and OIl . Air filter.. what else can i do
I also checked all the grounds except the one on the tank . as the tank is three fourth of the way full . it had been rough idling and then just died at home one day and wouldn't turn back over. it had been saying Oil pressure.. and the code reader said the cam-sensor solenoid was bad,.
What code was your sensor pulling? For the oil pressure......look above your oil filter, that's where your oil pressure sensor is. If it has oil on it, it's bad, and can cause several problems. Also, remove fuses #10 and #28, and clean your throttle body. This will clear up idle issues, especially if it idles bad only when you have the AC or defroster on.