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Toyota RAV4 Throttle Lag

79 messages,  Last post on Aug 11, 2009 at 7:38 PM

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#57 of 79 Re: throttle lag [raviola4] by edr5 Sep 28, 2007 (5:50 pm)
Replying to: raviola4 (Oct 06, 2006 8:47 am) I have experienced the same throttle lag. Even worse, I pulled into a left turn lane, came to a stop briefly, nothing was coming, so I pushed the accelerator, the engine rev-ed - and the car did not accelerate at all! I pushed down a little more expecting it to kick in - and nothing but engine rev! So I took my foot off the gas completely and after about 10 seconds tried again and it went. I took it to the dealer - they said this was "normal." I repeated this back to the service manager and when you say it out loud "I push the accelerator and the car does not move," then it does not sound so "normal." They apparently did read this forum after I told them this was not the first RAV this has happened to. But they could not "recreate" the problem so they did nothing. The guy did admit that they can now re-flash Camry's with throttle lag, but they are not allowed to do that to RAV's.   Now the stereo is going haywire. Sometimes it does not respond to the on/off button, and sometimes the display will not come on even though the controls work. Is there some kind of electronic problem that would affect both throttle control and the stereo? Seems unlikely but am curious. Replies to this message: user777 (Sep 29, 2007 1:21 am) cbmorton (Sep 29, 2007 12:42 pm)
#58 of 79 Re: throttle lag [edr5] by user777 Sep 29, 2007 (1:21 am)
Replying to: edr5 (Sep 28, 2007 5:50 pm) edr5, i'm sorry that your dealership is giving you the run-around.   i've cited your post as a good application of a obd-ii reader and laptop to capture the very unsafe and non-normal operational behavior of your toyota vehicle - which your dealer is claiming is normal and won't do anything because (supposidly) they cannot re-create, they are not motivated to re-create, or re-creating will put them in a difficult situation.   look here: user777, "2007 Toyota Camry Problems and Repairs" #4055, 29 Sep 2007 2:12 am   w.r.t. your stereo: here's what may be happening: do you use the on/off control of the radio a lot? if so, it's possible carbon build-up from many uses (everytime you press on, a tiny spark is generated at the switch contacts causing arcing and oxidation) is causing the switch to fail to close the circuit to power up the unit because of accumulation. it's possible specialized electrical cleaner could be used on the switch if the radio was removed, but you'd best have that theory passed by someone.   the radio display not working... sounds like it might be a loose connection to the radio or in the radio itself. sorry, i don't know more about the stereo in your vehicle.
#59 of 79 Re: throttle lag [edr5] by cbmorton Sep 29, 2007 (12:42 pm)
Replying to: edr5 (Sep 28, 2007 5:50 pm) Dealers will replace bad radios under a Toyota TSB that has been out since earlier this year. Had mine done in the spring after it started either going blank or displaying Japanese characters. The problem has not returned.
#60 of 79 Re: throttle lag clue? [fordm] by dsteinhorn Jan 25, 2008 (7:25 am)
Replying to: fordm (Oct 27, 2006 8:17 am) I have had the same problem on a 2004 and brought it to the dealer's attention mutliple times without resolution. Fall 2007, I was told it needed a throttle body flush and had that done for $125 by the local dealer in Chicago (Grossinger). Today I took it in for an oil change and was told it needed another throttle body flush for another $125 and, by the way, did the throttle seem to stick...... When I challenged the service manager to justify needing another $125 throttle flush in just 4 months, he told me he makes recommendations based on what he sees. Watch out for these vultures. You never know what the real truth is.........
#62 of 79 Throttle Surge by applebee Jan 29, 2008 (9:31 am)
I have the opposite problem of the folks with throttle lag on my 2007 RAV4. On a number of occasions when braking to a stop in close quarters, the engine revs to 4000 rpm and I am unable to hold the car with full brake pressure. When I shift to neutral to stop the car the engine revs to 6500 rpm. Same problems with dealer, "no computer record of malfunction, unable to duplicate problem, everything meets factory specs." No help from Toyota either. NHTSA site indicates Lexus drive by wire system had similar problems and they did nothing. I found the discussion of the computer reacting differently to different driving styles to be interesting as this has only happened once to my wife who is the principal driver of the car and happens frequently to me, five times in the past weekend. Quite dangerous as I nearly scared to death a pedestrian in a crosswalk. What do I have to get Toyota to replace the sensors in the system, assuming that will fix this? Replies to this message: user777 (Jan 29, 2008 9:48 am) porschecarrera (Apr 09, 2008 9:40 am) user777 (Apr 12, 2008 5:17 pm) mike375 (Jun 28, 2009 9:32 am) cmr6 (Jun 28, 2009 11:23 am) cmr6 (Aug 11, 2009 7:38 pm)
#63 of 79 Re: Throttle Surge [applebee] by user777 Jan 29, 2008 (9:48 am)
Replying to: applebee (Jan 29, 2008 9:31 am) I assume you can verify that a car mat was not stuck in the pedal assembly leading to the event.   I would forcefully suggest the dealer replace your accelerator pedal assembly and throttle body assembly. If you had an uncontrolled accelerator event which you could not control with application of the brake, that is pretty serious.   You can't get the dealership to assume liability for the result of an accident.   If the dealership won't work with you and replace these items at the least (and I'm assuming the problem could also be with the Engine Control Unit but am assuming it's more likely the pedal assembly or throttle body assemby at fault), then personally: I'd get out of the vehicle ASAP even if I had to take a loss.   Your safety, the safety of others travelling with you, and the safety of others in the vicinity of your vehicle are more important than the financial loss. Replies to this message: porschecarrera (Apr 09, 2008 9:40 am) user777 (Apr 12, 2008 5:17 pm)
#64 of 79 Re: Throttle Surge [user777] by porschecarrera Apr 09, 2008 (9:40 am)
Replying to: user777 (Jan 29, 2008 9:48 am) Wondering what you mean by "I'd get out of the vehicle ASAP even if I had to take a loss."   Hopefully, you're not implying that he sell the vehicle to another poor sucker. Replies to this message: user777 (Apr 12, 2008 5:17 pm)
#65 of 79 Re: Throttle Surge [porschecarrera] by user777 Apr 12, 2008 (5:17 pm)
Replying to: porschecarrera (Apr 09, 2008 9:40 am) i wouldn't live with it for an extended period. my wife and my children would not ride in that vehicle.   and no i don't believe in passing a problem like that along to another person...   i'd report it to the nhsta: http://www-odi.nhtsa.dot.gov/ivoq/   and to the manufacturer: http://www.toyota.com/help/contactus.html   i wouldn't try to sell it private sale - i'd try to sell it back to a toyota dealership - the entity in the best position to replace some components to eliminate the behavior forcing me out of the vehicle.   that's the best i could do. what would you propose for someone in that position?
#66 of 79 Tooyota Junk by mcase2 Jul 31, 2008 (2:09 pm)
This forum reads just like the Camry forum. The Camry is suffering from the same down shifting, jerking, cruise control problems, and slamming into gears. I also see another shared symptom in this forum, that is Toyota's arrogant refusal to fix the problem and the strategy of blaming the customer. It is abundantly apparent that Toyota will NOT help the poor souls who purchased their products. The only recourse is for owners to get tough and relentlessly apply the lemon laws that are available in every state in the Union. Money is all these companies understand and forcing them to buy back their junk beats hell out of begging for help they will not provide.

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