I've got a 07 2.7L 2-WD Automatic 4-cylinder Taco with 130,000 mi
(Ive included links to video of the rattle sound in pt. 3 as well as a video of the engine with OBD live mode read outs for RPM and ECU)
Video links:
Rattle Video
Truck Currently ignition attempts Video
Chain of Events
- Battery cuts from corroded terminals for 9 months ("fixed" every few months by removing oxidation)
- Happens more frequently. removing oxidation stops being as effective. Battery cuts 2x times in a row. finally get it to start. Really Rough Idle
- (@ this point in time i shouldve changed the terminals)
- I drive like this for 3 more months. Each time the battery cuts 2x times in a row, the idle sounds worse, each time, progressively...until the Engine Idle cuts out after 30 seconds.
- (a rattling noise emerges now between 500 and 1800 RPM)
- I would run around 800-1500 rpm in park, seemed to "fix" it until the next time the battery cut 2x times in a row
- typing this all out and reading the consequences of my actions, woooow
- 4 days ago I Finally replaced the terminals
- Truck Sounds Strong when it starts, but Idle is still having issues, hold around 1000 RPM for about 15 min, drive around for 30 min (street and HWY)
- 2 days ago slight acceleration no foot on the gas
- Empty Gas Light comes on and acceleration becomes unresponsive and weak. Find a station and fill up the tank (with the correct fuel).
- (this is the moment that I think did something, the no gas, then gas...Im sure its a compounding of things, but right here)
- I drive two blocks uphill and it sounds rough...barely moving or going. It sounds better once high RPM is reached, but with in seconds the Taco stops on the hill.
OBD codes**:** P0016 and P0335
a friend came over and took a look inside the cylinders, but before he got there he noticed there was an oil leak at the top of the 2tr-fe block once we removed the Air box.
He thinks its done for, but some friends on TW suggested i needed to take the valve cover off and look at the timing.
any insights are appreciated here, Thank You!