I ran the scanner and got the code p0303 . I changed the oil, replaced the spark plugs, the wires and the Ignition Coil (aka coil pack).
No more code p0303,but the problem got worse because now the truck shakes big time and dies. Ran the scanner again and this time I get the code p0174. Changed the air filter and cleaned the Air Throttle accordingly and the MAF.
I took the truck to a mechanic shop and the mechanic wants to run several diagnostic testing for $175.00 Anyway, earlier today I checked the PCV and noticed it was very dirty and with what appeared to be oil, I cleaned it very well and the motor now idles somewhat better,but then after a few minutes the truck start to shake again. Can someone here give me an advice?. Thank you.