I need your input to help me figure out what to do next. I've been trying to research the issue on this site and have seen a multitude of solutions. I'd like to get some advice so I can narrow it down to just a few things to try. If all else fails, I guess I'll go to the dealership .
Here's the specs:
- 2005 Toyota Tacoma Double Cab SR5 - v6
- 140,000 miles
- K&N Air Filter
- Spark plugs replaced in last 25K
- I'm not a mechanic, and am moderately skilled at best in vehicle repair (but always willing to give things a chance)
Here's the details:
About two weeks ago, I followed two great posts on here about cleaning out your Taco's throttle body and cleaning the MAF sensor. I followed those to the T. Past the initial firing up, the truck had a much better idle, was a bit quieter, and was getting better fuel economy .
Another issue I was having was that when I would come to a stop on cold days, my heater would stop putting out hot air. So, this last weekend, I decided to flush my radiator (using a tutorial). I drained all fluids, flushed, and put back in new Toyota super long life pink stuff. Heat worked like a charm.
While I was at it, I changed the oil in my truck too (I doubt that is a factor, but wanted to throw it out there).
Truck was running fine and dandy.
Next day, I go to start it. It starts fine, but has a strong shake (not good, not good). The shake is there for about 20 seconds, then completely goes away. No check engine, just like it 'had a moment'. I drive to grocery store. Go to fire it up in the parking lot. Again, strong shake, goes away, no engine light. Later that evening, I go to start, get the strong shake, but this time I get the check engine.
I have a Scanguage II, so it shoes me a P0306.
So, here I am with a P0306, a strong shake that goes away after about 20 to 30 seconds, and a frustrated look on my face whenever I'm by my truck.
Could something have worked its way down into cylindar 6 when I cleaned the throttle body? Is this something more serious? What should I try?
Things to note:
-There has been a peanut-butter type substance underneath the oil cap ever since I bought it. I usually just clean it out and chalk it up to moisture - maybe a bad idea? I hope it's not more serious.
-Most of my trucks miles are highway. Only recently did I move close to town and now have mainly city miles.
-My trucks power seems to be sagging (hence why I did the MAF cleaning/throttle body cleaning). This could also be more noticeable as I recently moved into a hilly town.
-The spark plugs were the iridium tipped jobbies (yeah, I probably got taken, and should have read up more on them) and really should be ok.
Alright friends, thanks for any help you can provide!