Weird throttle/misfire issue. The latest chapter in the only unreliable land cruiser update.

[kchristian]

Hey guys, I’m back a few short weeks later with a new mystery for the only unreliable land cruiser in the world, my 2008.

After driving on the highway for an hour or so, if I get on the throttle like to pass another car or merge onto an on-ramp, I get no power. The transmission will downshift a couple gears and the rpm will go up and I get zero power. If I try it a few times or just continue driving normally for a while I’ll get a flashing check engine and my #2 cylinder misfires. When I stop and park it for a while it will start back up no problem and drive normally for another hour or so until it all starts back over. Mechanic suspected a bad coil on the #2 cylinder but replacing that didn’t change anything.

If I drive like a grandma it will drive normally for a couple hours but then when I have to go up a hill or need a little extra power the engine will bog down and I have to back off the throttle.

Any ideas?

 

[molanginaeda]

Engine light on? Pull the code.

 

[kchristian]

Engine light on? Pull the code.

Yeah sorry I wasn’t clear. All I get is cylinder 2 misfire when I pull the codes. And that’s only if I catch it when it’s on. If I shut it down too long it won’t show any current codes.

 

[montegofd3s]

Did you change the plug and the coil?

 

[kchristian]

Did you change the plug and the coil?

Just the coil. He said the plugs looked new

 

[Sandroad]

I wonder about a fuel problem. Fuel pump, ECU and relays ok? Though not exactly the same issue, maybe some ideas in this thread?

2013 dies repeatedly while driving down the road

forum.ih8mud.com

 

[kcsmithson]

My 2014 had the same symptoms. Ended up being a broken valve spring.

 

[kchristian]

Would it run normally for an hour plus before having your problems? That’s what’s baffling me.

 

[kcsmithson]

In town, never seemed to have issues. On the highway, if I tried to pass someone or got on the throttle, it would go into limp mode and basically shut down. Like a fuel issue. Sometimes I could wait a few minutes with the engine off, and it would reset and run normally the rest of the day. On occasion, I had to pull a battery cable to get it to reset. Didn’t always show a Cylinder 2 misfire, but that was most common. Dealer has had it since beginning of May sourcing parts. Broken valve spring, 2 bent valves and a head that needs to be replaced so far. 99% of the time, it ran like new. I am the only owner and it has always been serviced.

 

[kchristian]

My 2014 had the same symptoms. Ended up being a broken valve spring.

In town, never seemed to have issues. On the highway, if I tried to pass someone or got on the throttle, it would go into limp mode and basically shut down. Like a fuel issue. Sometimes I could wait a few minutes with the engine off, and it would reset and run normally the rest of the day. On occasion, I had to pull a battery cable to get it to reset. Didn’t always show a Cylinder 2 misfire, but that was most common. Dealer has had it since beginning of May sourcing parts. Broken valve spring, 2 bent valves and a head that needs to be replaced so far. 99% of the time, it ran like new. I am the only owner and it has always been serviced.

Ooof. That sounds painful. How much $$ are you into the repair at this point?

 

[kcsmithson]

Thankfully I purchased a 7 year 125K platinum warranty. No deductible and they are paying for the rent car. Going to be about 4K just in rental before its done. I have no idea what the repair bill will be. They wanted me to pay to replace the remaining valve springs on that side, and that was about $900. So that might be a decent reference point. That has dropped some for me as they have found more wrong to cover under warranty.