Lexus GX 2004-09 :: If Engine Revved When In Park No Deceleration When Letting Off The Gas
Mar 13, 2016
My girlfriend said her 2008 GX has been acting weird recently. When in park, if the engine is revved, the RPM's don't drop after letting off the gas. The RPMs do eventually drop but it takes a few seconds and it doesn't do it smoothly. The vehicle also maintains a pretty constant speed while driving and letting off the gas with very little deceleration. Is this normal for this vehicle or could something be wrong with it?
View 5 Replies
Advertisement
If I am going over 60MPH and let off the gas pedal (decelerate, no brakes) I get a bad rattle/vibration that shakes mainly the dash front. only happens when I let off gas pedal. As long as I am giving gas the Bronco runs smooth, no vibration/rattle at all.
I just changed..Front Rear Brakes, Repak Front Wheel Bearings. New Front Rear Shock (deutch Tech), new track bar poly bushings, greased all joints axles, changed rear diff fluid (bottle of transX diff additive 85W-90 gear oil). It did the same thing before all this too and it is intermittent (but more so than not). Sometimes it is really violent (feels like the whole truck is going too shake loose, other times it is fine.
I am going on a long trip Thursday and this is bothering me. Cant pin point problem. One note i towed a boat for the first time last sunday and the problem went away, i.e., more wait in rear? Alignment,tires,driveshaft? I really dont have time to do anything except minor adjustments before I leave.
View 7 Replies
What could cause this? I have 100k and I only notice this if in park or neutral at 1500rpms. It goes away before and after and it seems to drive very smoothly. I had a bad alternator and I just replaced it but the "new" one is making a high pitching ringing so I'm having the shop change that out for a new oem. Any chance it's the alternator or could this be something else. I have sea foamed the throttle body recently and cleaned the maf recently and changed the air filter. I didn't do plugs but they are do at 120k
View 7 Replies
I have a 2004 RX with 82,000 miles, well maintained. Lately the engine will start but the warning lights won't go off and the gear shift won't move out of park. I have to keep turning the vehicle on and off until the gear shift will go in reverse.
It doesn't happen every day but off and on over the past month.I've had numerous brake light switches replaced which could maybe be the lights, would that affect the transmission too?
View 3 Replies
It started after a blue spring upgrade. my turbo would not spool until we revved the engine hard then it kicked in and it's kinda worked since then.. it feels like the truck is struggling on acceleration and the boost builds fast up to 30lbs, the EBP seems to be stuck at 21.48psi until your in 3rd then it jumps and I have power again, also the turbo dumps (farts) if I let off even a little until the EBP jumps then no issues. I replaced the sensor and it's stuck at 21.48 all the time.
Now, I unplug it and it jumps between 26 and 28psi, plug in the old sensor while it's out laying on the motor (not installed) and right back to 21.48. I don't know where to go with this and it's my only truck so I need it running. also it was blowing the intercooler boot off at the turbo during a normal acceleration and the turbo spool has a howl to it when EBP is stuck...
View 14 Replies
2008 Passat with TSI and tiptronic transmission. The wife has two instances were the engine speeds up on it's own. She swapped vehicles, so I wasn't able to get into all the details, but it sounds like the engine rev'ed up to 5,000 rpm, but the car didn't speed up. Transmission dropping out of gear or downshifting?
View 2 Replies
I was driving down a long steep hill on the highway going about 65. I put it into engine braking, B, because I didn't want to just ride the brake the whole way down. The engine was revving pretty loud and with no RPM guide, I had no clue if it was OK, so I ended up going back into D and just rode the brakes all the way downhill.
View 19 Replies
On Friday morning the 2004 Prius with approx 140k miles started normally. It over-revved slightly for about 10 seconds while driving a short distance, but was fine on the return trip home an hour later.
View 10 Replies
My fiance' can't drive stick so, I got her a 2005 jetta gli with tiptronic.. It's been fine up until today.. She was driving along, than it was like the engine revved up a little bit with out going faster, and now its making a slight whining sound, which also follows blipping the throttle in ANY gear, including park.. Its 1.8t, with about 135,000 on it.
View 13 Replies
Started up my rig yesterday and heard a very strange screechy sound that got louder when I rev'ed the engine. After a minute or two it went away. Same sound this morning and whenever the truck sits for more than an hour. Sounds like a turbo problem and is coming from that area under the hood..?
View 11 Replies
My daughter bought this truck about 6 months ago. This morning a driver cut her off, then hit his breaks. She had to make a panic stop. When she went to take off again, 1st and 2nd was no problem. When she shifted into 3rd, the engine just revved.
She tried to shift back into 2nd, but it wouldn't go into 2nd. She pulled over and now it won't go into any gear. The shifter lever won't even go over far enough to go into 4th, 5th, or reverse. I doubt the panic stop had anything to with it, but thought I'd throw it out there, just because.
Okay here's the truck: 1997 F150, 4x4, base model, short bed, 4.6L, 5 speed manual, manual transfer case, 190k miles. Truck has been beaten and abused badly, but is basically mechanically sound.
Here's what I've done so far. Checked the fluid, it was fine. Pulled the top cover and shifter lever out. I don't have a clue what I was looking for in there, but I hoped to see something obvious. I didn't.
View 13 Replies
Pretty nice condition 2003 1.8t Passat 5 speed yesterday with 45k miles. nice price, mint interior, only a few minor blemishes on the bumpers.
Anyways, I was noticing that the gas pedal needs to be pushed in about half half before the car wants to move. I do not believe it was the clutch going bad as the engine wasn't revving when i was letting the clutch out, it just didn't seem to move until the gas pedal was half way down. again, no clutch slippage, engine was not revving.
View 7 Replies
After successful 4kwh install I was coming off interstate at 65 mph avg. when red light began to show on phev switch. Of a sudden the ice revved to 3700 rpm and loss of power. I was only able to get up to 25mph after red light. The ice continued to rev and of course the dash lit up like a christmas tree. I got to top of hill and pulled over and shut it down. I started it up and every thing worked fine except the red triangle and check engine light were still on and all the other lights were off.
I pulled into BachmanToyota about five miles further and their tech said this: "There is a code poa92 detail 606//adv there is a cust.modified addtional battery,in which we cannot svc." He cleared the code and I drove it home a total of about 60 miles and it is fine. What went on ?
View 2 Replies
Last week my 2008 Prius started making a faint beep each time I let up on the brake after a stop when I remove my foot off the brake. It also will make this faint beep when I let up on the brake even if the engine is not on. It is faint, nothing as loud as the beeps for seat belts or backup. The Prius is not experiencing any warning lights or any other noticeable problem and is running great.
View 6 Replies
Shifted accidentally from third to second on highway, revved way up and engine shut off, turns over almost started an hour later but didnt want to try to completely start it. still under warranty so how do I get around the OBD reports and get it covered or am I screwed.
View 2 Replies
I recently had some brake work done on my 2003 Jeep Grand Cherokee (139k miles), and they installed a new master cylinder. The following day, I was driving (very cold these days) and noticed the car had difficulty getting into higher gears and the engine revved up but would not accelerate. I had to stop, put in reverse, and start driving again. Then, the engine light popped on (P1763 - Governor Pressure Sensor) and has remained on for three days. The car runs fine most of the time, but occasionally experience the loss of acceleration. What should I do?
View 5 Replies
This just recently started happening that after a few minutes at idle in park the engine turns off. I did install a DBALL remote start last fall but thats runs until the door is opened but the car wasn't started with the remote nor the door opened.
View 5 Replies
I have a 2004 GX470, fully loaded. When I shift into drive from park, all my doors automatically lock. However, when I park and shift back into park, the doors do not unlock...I have to manually press the unlock button. Is this how it is supposed to be? I have ridden in later Lexus's where the doors unlock when you shift to park. Or is there a switch or method to get the doors to unlock when shifting into park?
View 7 Replies
This is happening intermediately, maybe 1 out of every 5 starts.
Using the override I can shift just fine and the lights go away within 2-3 minutes. However, there's obviously something misaligned here. Search revealed potential brake switch issue (my tails and brake lights are fine so no issues there), lockout issue, or a park neutral switch.
So I took the panel apart and I am trying to isolate these potential issues, image attached, what I need to do next? I am more of a visual person so if someone can circle the part I need to disassemble or replace that would be most useful.
View 9 Replies
I have a 2003 T&C 3.6L with tow package, purchased used (privately) with 25K miles in 2006. Since I have owned it, it will occasionally not go into any gear when first started after sitting at least overnight- basically stays in neutral until engine is revved to about 2500 RPM. You can rev it in neutral or while it's in gear. This always works, and the transmission will then work fine until another overnight stay. I have had the transmission serviced 3-4 times (once when it first happened, and then at recommended intervals. The car now has 96K on it, and it has been happening less frequently (in fact, it hasn't occurred in about two weeks). I have discussed this with two Chrysler dealers, and have left it overnight twice, but of course it didn't repeat at the dealer. I haven't been able to correlate when it happens with anything except: it seems to occur more frequently when garaged in Pittsburgh than when sitting outside in Myrtle Beach (I spend time in both places).
View 3 Replies
While driving with cruise control set at 80 mph in my 2002 Toyota Camry, the engine suddenly revved up to 4200 rpm while going up a hill on the freeway. I was wondering if this sudden high rpm could do damage to the engine? The car has 163,000 miles on it.
View 8 Replies
