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Old 09-27-2020, 05:57 PM #1
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Mysterious driveline kick going up hill. (SOLVED!)

Final Update:

I FIXED IT!!!

So it became obvious that it was a misfire, it started happening all the time at idle but never during acceleration or cruising. Although the original issue was the"kick" while going up a slight hill. It was close to time for the plugs....but not like right at it. As soon as I took out the first one I knew they were the problem... They were totally shot. One in particular, the driver side middle one, was super shot and I believe this was the one that was missing.

So chalk it up to me not looking at basic stuff first... Doh. Still gonna change out the shift solenoids and injectors because... Well shit why not?



Update. The issue has changed a bit, I now get these very tiny feeling kicks when I'm slowly backing up sometimes. Rarely, I will feel one when shifting from p to d, d to r, etc. Again she shifts fine while driving. PLUS, she's developed a random stutter during idle that is definitely coming from the engine. They are very quick and seldom. I've already replaced the wires and coils.

Anyway...
I went ahead and ordered a set of shift solenoids from Rock Auto or whatever it is called. And I am ordering a set of injectors soon. Any other ideas? I hope the TC is fine...


Original issue:
Started to get this strange kick in the driveline when I go up hill. I lubed up the driveshafts but that didn't seem to have any effect on it. Honestly I wonder if it's the torque converter lock? It only does it in 3rd or 4th while going up hill. Also, a few months ago I had a one time code that mentioned the lockup solenoid, though it never came back. I'm wondering if I should replace it if it's starting to go out.

Found the code, P0773, solenoid E I think. Is this the lockup one?

2000 4Runner SR5 V6 4x4 Auto, 149,500ish miles

Ideas?

Note:. Other than this random occasional kick up hill she shifts fine.

Last edited by jross20; 10-10-2020 at 08:25 PM.
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Old 09-27-2020, 10:03 PM #2
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Think I had a similar issue a while ago when I first bought my 4Runner.

It feels like a quick ‘slip’ of the transmission when you give it just a little more gas to keep speed?

If so; mine was spark knock; caused by 11 year old wires that were never changed.

I don’t think I had any codes; but couldn’t hurt to try a quick wire/plug change and see if it goes away.


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Old 09-27-2020, 10:19 PM #3
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Quote:
Originally Posted by Doc2012 View Post
Think I had a similar issue a while ago when I first bought my 4Runner.

It feels like a quick ‘slip’ of the transmission when you give it just a little more gas to keep speed?

If so; mine was spark knock; caused by 11 year old wires that were never changed.

I don’t think I had any codes; but couldn’t hurt to try a quick wire/plug change and see if it goes away.


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It's hard to describe exactly, although it is a very simple, I can tell it's coming from the driveline because it has that little bounce feel. I had a 93 Accord a long time ago that had this little quirk about it. If you quickly tapped the gas enough to make the engine jump a little but not enough to force the transmission to unlock, you would get this bouncy kick. I always assumed that this was that clutch feel of the engine and wheels being locked.

When you say wires, I'm assuming you're talking about the ignition wires? I changed all those last year and also put in three new ignition coils this year. It definitely does not feel like a misfire as it physically shakes the driveline.

Last edited by jross20; 09-27-2020 at 10:34 PM.
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Old 10-10-2020, 08:23 PM #4
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Solved it! The spark plugs were totally shot... Lol
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