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Hello,I’m been having a problem with my Toyota Tacoma for the last three years, that no shop can seem to fix.
My vehicle is a 2000 Toyota Tacoma PreRunner 3.4L V6 with 194,800 miles. It has been a great truck for the last five years except for one problem that has been consistent over the last three. My Toyota seems to randomly die at idle with no check engine light.I have replaced spark plugs last year and had the 3step cleaning services done, replaced the IAC, replaced the mass airflow manifold tube ( had a crack in it) and just replaced the fuel filter, but even though the idle is still a little rough sometimes, it is not as bad since I replaced the fuel filter. Randomly when I’m at a stop the RPMs will just drop to the engine stalls, but I still have power and all the lights still work and I’m able to restart the vehicle with no problems. Sometimes if I’m fast enough I give it some gas and that stops it from stalling out. Without a check engine light, the shops have not been able to find the problem.
Some people have been telling it could be the TPS or the MAP malfunctioning, or could it be something else?
Much help or advice would be very appreciated 🙂
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With no check engine light you’re pretty much shooting in the dark and have to rely on old school trouble shooting.
I’m assuming you did all the free to cheap trouble shooting things like a plugged air cleaner filter (don’t laugh, I’ve heard of people not checking that when their engines died), bad gas cap (yes, my GF had that happen on her 2001 4Runner although it did generate a check engine light), etc.
Another long shot is something that happened to me on my work van. My battery was shunting down the voltage from the alternator which caused the engine to die. Swapping the battery from another van cured that problem.
Air, gas and spark. Just the facts.
Just remembered something else. Vacuum leaks.
I would try cleaning the maf sensor and make sure there are no air leaks between the maf and throttle body etc
Thanks for the help sir. Yeah replaced the air filter a few months ago, I don’t think the gas cap could be leaking, but I’ll try anyways. replaced the spark plug wires in 2013, replaced the whole air intake manifold tube that leads to the engine a few days ago and closed to nipples that were leaking. I almost want to say the problem started a few days after I put in Marvel Mystery oil, 4oz into my tank.
I think this could also be the start of the problem from three years ago. I was an idiot and was putting in Lucas Fuel Stabilizer every two weeks for months and then in Dec 2013 it started dying every time it stopped,
So I’m wondering if I caused some sort of damage when I did that.
[quote=”MasterLordZero” post=179553]Thanks for the help sir. Yeah replaced the air filter a few months ago, I don’t think the gas cap could be leaking, but I’ll try anyways. replaced the spark plug wires in 2013, replaced the whole air intake manifold tube that leads to the engine a few days ago and closed to nipples that were leaking. I almost want to say the problem started a few days after I put in Marvel Mystery oil, 4oz into my tank.
I think this could also be the start of the problem from three years ago. I was an idiot and was putting in Lucas Fuel Stabilizer every two weeks for months and then in Dec 2013 it started dying every time it stopped,
So I’m wondering if I caused some sort of damage when I did that.[/quote]
Just curious but why the Marvel Mystery oil and the Lucas Fuel Stabilizer? I do use the Lucas Fuel Stabilizer but only once a year and only in my boat gas tank during the winter.
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