Ditto here but there's a fix of sorts
Mine (2003 Step side V*) has pinged since about 3k miles. I did find something that made it go away though. It's called RXP. A gas additive in a very small red bottle, cost about 8 or 9 dollars but it makes a heck of a difference in how one runs.
I had a Ford Ranger, V-6 special order 4X4 and then a regular Ranger (V-6 4.0) before that that had 90k on it when I sold it. I used RXP in all three without any problems.
There's a guy on the AM radio here (Sat. morn - Ed Wallis) in Dallas/Fort Worth that's very honest and doesn't advertise anything he doesn't use himself. For real.
He was the 1st guy I'd heard mention it. I went and got some though I do remember thinking, " What the #*&%^ ? 8 dollars for that tiny bottle ? You gotta be kidding ! " but bought it anyway.
Poured it in and he was right. I could tell a huge difference in that Ranger with (at the time) 60000 miles on it and it only took a few seconds too.
I know, hard to believe. No I'm not a dealer either.
Try it yourself. Pour a whole bottle in your tank when it's half empty and I'd stake a paycheck on it that it'll make your Tundra quit knocking as long as there's nothing else wrong with the motor like bad timing or something.
Here's all I know about the stuff.
If you've got a car that won't pass emissions testing - with this stuff in it it very likely will pass.
If you've never ran RXP before or you haven't had your fuel injectors cleaned in a while, here's what you're to do.
You run 3 tanks in a row through your ride, at least 1 bottle per tank. After that you run 1 bottle every 3rd tank as maintenance.
I've used this stuff in cars as well and to be honest, I usually put a full bottle in a car as well which is about a 12 gallon tank.
Question comes up should I double up on the amount I put in my truck ?
Don't know, haven't tried it. I just know 1 bottle makes my V8 not sound like a broken Toy.
That clattering is down right embarrassing not to mention that I agree with the guy who said it certainly doesn't do any good to the engine either.
Try it.
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