Only had my 06 LR3 for about a month now - this has happened to me twice in the last day - at a low speed of 5-10 mph, I push the pedal down, the car accelerates properly for 1-2 sec, then the rpm drops down to idle, the car coasts for another 1-2 sec, and the rpm instantly jumps back up and I'm on my merry way. The whole time I have the pedal in the same position, and I don't get any warning lights, messages, or codes thrown. What's the deal? I don't think it's the California Stop bug as the car accelerates properly for a second or two before having the issue. It also seems like a software issue as it doesn't sound like the engine is bogging down, there's no grinding noises, the car just acts like I've pulled off the accelerator and then gone back on. It's not every time, in fact the first time it happened so quickly I thought I imagined it. The second time the lag was more like 2-3 seconds. Help!

 

 

Yeah I chuckled at first as well, but it does sound plausible. I'm the third owner of this truck, I bought it from a good friend who bought it CPO from a dealership about 60k miles ago. He did the throttle body a few years ago, replaced with a genuine part. First thought throttle position sensor, but then I found out it's integral with the throttle, so that too would have been replaced when he did the throttle, and it seems unlikely it's already gone bad. I'm just about ready to pull the trigger on the GAP tool. I have the iCarSoft tool, which seems great for diagnostics, but it can't flash ECU's or anything so the GAP would basically just preclude me from needing to visit the dealership for software updates, which I hate doing. If it ends up not being the brake light switch, I'll probably buy it immediately.

 

I just tried to gas my vehicle with the brake pedal engaged, no problem. But who knows. Just buy the GAP regardless. Their customer service is insane. They got me out of a bind my $15K Autologic with $2K a year service contract could not.

 

Same. You'd think they -would- have put a safeguard in place for that. Oh well. I've got my finger on the trigger for the GAP right now. The only thing that gives me pause is that I already have the iCarSoft, which will basically become a doorstop compared to the functionality of the GAP, including the fact that it's also VIN-locked so I can't sell it...

 

GAP is the best answer for these things. I to would try cleaning the throttle body