Lexus GX 2004-09 :: 2005 GX470 Stalls At Highway Speed But Restarts?
Jul 1, 2012
I have a 2005 GX470 with 96,000 miles. Yesterday, while going on a 500 mile road trip the car stalled suddenly while traveling about 75mph on the interstate. It would start surging and then just stall completely. I pulled over.. Let the car sit for a minute and then it started right back up with no trouble. It did this to me 4 times on the trip about 80-100 miles between issues. The last time it was while accelerating hard up hill. All other electrical functions.. Radio, lights, etc... continued to work fine. I don't recall the cel ever coming on and even if it did it wasn't on when it restarts. It was 100 degrees out.
I'm on vacation so wanted to get it checked put before we head home but curious on thoughts of what it might be? I was thinking clogged fuel filter or MAS but the fact that it restarts right up after stalling makes me ink it might be more of an electrical issue.
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I would like to post this performance issue on my 2003 GX470_79Kmiles which happened on the freeway yesterday. The sequence:
1) During start and at idle/stationary, the rpm shoot to 1100rpm and stayed there for a while, i would think that it was normal since the engine was still cold.
2) Drove to the freeway, I noticed that speed is very slow to pick up. My normal driving experience was that at close/equal to 2000rpm, the speed usually at around 70-75mph. But there was a considerable reduction of speed at around 60mph at almost more than 2000rpm, plus a buzzing engine noise. I tried to really rev-up the engine but very sluggish to pick up the speed not even close to 70mph.
3) Drove the car to lexus shop this morning, top speed of 60 to 65mph and tried to rev it up to plus 2000rpm to pick up speed, but the engine noise is very abnormal.
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I have a 2005 GX 470, I noticed a sound, like that of a belt being loose, the sound came from the front of the truck. A few minutes later the AC stopped cooling, it was blowing really hot air and then the temperature of the engine went really high. I stopped on the side of the road, when we opened the hood, the belt was not broken but there was antifreeze everywhere.
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I have a 05 gx470 and I was having trouble with the rear staying bottomed out and not pumping up. I replaced both ride height sensors. Nothing changed until about 1 hour of driving the compressor kicked on. it road better but still bottomed out some. So I raised the sensors about 5mm. it road great for about 10 miles then went back to riding on the axles. No compressor activity. Also when the compressor is not engaging the push buttons do nothing with changing the dash from H-N-L no matter when you push it. If you hear the compressor running all the buttons will work just fine. I have a useless car because it is not safe to drive when its riding on the axle bump stops.
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2005 GX470 ... My Issue is that when I pump Gas ONLY in Calif it keeps stopping. I have tried all angles of the pump. I have tried holding back rubber on pump, but that will not work. This is something else. I have been to other states such as TX AZ NM & NV and this problem does not exist.
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I have a 2005 GX470 with about 50K miles. Over the last few weeks it started exhibiting a weird problem. When accelerating above 20-25 MPH it starts shaking. Not the steering wheel. The entire car is shaking as if driving over rocks. It is pretty annoying, and I am now concerned as it seems to have gotten somewhat worse than before.
Tires are rebalanced and rotated, so i dont thing it is that. My wife is freaking out, as she is driving it with 2 small kids.
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2005 GX470... Long time Toyota owner, first time Lexus with tpms. Light is flashing meaning a bad sensor from what I've read. Lexus wants $ to check and repair one wheel. Discount tire had a hand held checker and it found two bad sensors.
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I love my 2005 GX 470, but the A/C takes a few minutes of driving to get cold. It eventually performs like it should, but it shouldn't take 5+ minutes for the output to be cold I wouldn't think ...
IS THIS NORMAL for this vehicle or is there an issue? what is YOUR experience? My MDX will freeze you out after about 20 seconds of operation ...
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What the front wheel well liner shields that are held in by plastic clips are called there are made out of rubber cardboard fiberish material they keep water and debrie from getting in through the wheel wells. Need to know the part number.
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My wife started up my 2005 GX470 this morning to go to work and drove maybe a half mile before she noticed a problem. So she turned around and drove it back home in limp mode. She put it in park and got out.
Most of the Warning Lights are on ( VSC OFF, VSC TRAC, Anti Skid, Check Engine etc). I tried moving the shift lever but there was some resistance and some grinding noises. And it now seems to be stuck in neutral.
How to diagnose this myself? We only drive this vehicle in the winter, and it was fine the last time we used it.
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I just purchased a used a Lexus GX470. The transmission seems to do something fairly consistently that seemed unusual to us, but we are new to this car so I'm not sure if it is normal, abnormal, or a sign of something big to come.
When starting from a complete stop, upon removing your foot from the brake, there is a noticeable mini-surge in the engine as the transmission engages, and the sensation seems to repeat when the transmission is disengaging as you brake to stop.
Does this sound normal? From searching on google, I have read that there are issues with "hard shifting" but this does not seem to happen with shifting...just when the transmission engages or disengages, and it isn't a big 'bump' as much as a mini-surge. I have also read where it could be related to something electrical such as the air conditioner.
The car is under warranty, but the service department notes no error codes when they scanned the engine.
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A Lexus dealer in NJ told me my 2005 GX470 front axle boots leaking, they gave me a quote to re-build both side.
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I have been reading some mixed reviews here in regards to the "CLUNK". I am referring to that feeling as if hit from behind shortly after coming to a stop. Some are saying it still exists in the 2005 while others are implying that it has been resolved.
Just to be perfectly clear.... Has experienced this "Clunk" in a 2005 GX?
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This just started happening two weeks ago but it occurred 4 times already. When i first turn the car on sometimes the back speakers pop/crackle loudly and one time it occurred that the radio was not operational for about five minutes after the loud popping occurred. I have a full platinum lexus coverage on the vehicle but the issue is the dealership cannot replicate the problem with the car. On most of the post ive seen that the issue is most likely the amp. I was wondering if there is a way to replicate the issue at hand or am i going to have to records this and show it to the dealer.
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I've had the stiff ride issue with my 2005 gx470. Took it to three lexus dealers and finally the vehicle is fixed. Hats off to Lexus of Maplewood, St Paul, MN. Their shop foreman persisted and found after several days troubleshooting; a speed sensor was the culprit. My ride is much smoother over speed bumps without the need to cycle through the height adjustment.
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I'd like to convert my 2005 GX to a push button start ignition.
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How to fix rear air suspension from dropping down to bump stops ...if I reset it every night it is fine but if not it will be down on bump stops by morning.
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My left rear suspension will leak down to bump stops unless I turn off auto suspension leveler. I can set suspension at high level turn off and it will stay that way i had set that way for 2 weeks and no leak but if I turn on leveler it may stay or it may leak down usually just left side somebody had said that my air bags were leaking so I tested it out all last month and find it hard to believe the bags are leaking if it will stay inflated a week or 2.
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I have a new to me 2005 F150 SuperCab Lariat 4x4 with 155,000 miles on it. About a week ago I replaced the from passenger hub assembly and half shaft (torn boot). When doing that, I noticed that the IWE actuator was not working right (would not compress evenly). When taking that off, there was a bunch of rust that came out of the vacuum line ports. It started moving freely after cleaning all of that out that I could (I will be replacing it soon). I assembled everything back together and all seemed OK mechanically.
I also scanned the truck and saw the code for a bad IWE solenoid so that is being replaced tonight. I also have not checked the drivers side yet.
So...now that I have done all of that, the truck started occasionally bucking/shuddering when I slow down from highway speed to about 30mph and lightly accelerate again. It does not do it every time though. There is no grinding/whining noises either. Could this be caused by the IWE system somehow? Maybe slowing losing vacuum and having one engage and the other disengaged?
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1996 Jeep Grand Cherokee 4L
Problem "Stalls at idle and at hwy speed" sometimes starts right up and sometime will not start. Sometimes it will lose acceleration but engine will still be running and you can punch the gas and it will go again.
It has been in the shop for most of the last 2 months. Driven in 3 times and hauled in twice.
Low mileage 70,000 - has been great until now - serviced regularly.
Did get new fuel pump only about 10,000 miles ago do to starting problem but in that case it just did not start.
Independent shop replaced distributor cap, rotor, coil, fuel filter. No codes and couldn't duplicate problem.
Jeep dealer replaced fuel pump (they said wiring problem), O2 sensor, engine module no help, they asked us to pick up car because it ran fine. It stalled within 2 miles of shop.
We replaced gas cap just in case.
Limped back to shop to replace crank sensor as it was suggested several places. Ran fine for about 45 minutes then back to old tricks. Relays have been checked. Still at shop trying to trace problem. At least nobody is saying they can't duplicate problem as it now stalls all the time.
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Have swapped the following parts from my 92 240 into my 93 240 without any change in my stalling issue:
AMM, coil, ignition module, fuel relay, spun all fuses and checked hose between throttle body and AMM for holes.
Was super hot in NM today and after driving the car about 1/2 an hour it stalled and would not restart until it cooled off for about 20 minutes.
It doesn't seem to matter what level the fuel tank is. Stalled the other day when it was full.
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