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Comments
I'm unsure as to what to request to research "droning" issues.
I checked Powertrain and found nothing, same with "Other".
Suggestions?
She wouldn't trade it for any other car we looked at. (Even some pricier models.)
jdr
jerry
Both are 4 pin. If you need to run just trailer lights you can get a 4 pin to 7 pin adapter. If you need the extra power for a brake system you need something more I guess. You can get info from E-trailer or other web sites I am sure.
Toyota is not responding very well in my case however did indicate a service bulletin is now available thru the dealers. Be careful that your dealer does not use a third party repair shop as mine did. The contractor substituted the hard factory material with a doubled piece of insulation.
"Poor sealing at air intake, fabricate and install water deflector at air intake box, reseal a/c lines though firewall "
There are also some numbers which I guess are warranty claim codes for Toyota. So far, no more water on the carpet.
I am still waiting to hear from Toyota or the dealer regarding what kind of fix they plan to try next on the droning noise. It's been a couple of weeks since I took my vehicle in so they could hear the noise, which they did. I will definitely let you know if my problem gets solved. I hope it does because the car is fun to drive. It haqs other disturbing issues besides the droning ( dashboard creaking near radio, radio volume control knob works sporadically, sun visor flops away from the windshield) so I need to get those things addressed too. I don't know if I'll keep the car if they can't fix it as I'm really starting not to trust it. I have driven the 2007 Honda CRV and it's definitely not as fun to drive as the RAV4, but it is very nice and seems like it's really well made. Anyhow, I didn't mean to go off on a tangent. I will keep you posted. Please keep posting your progress with the issue too. Thanks!
Jimmy Drew
Most are above the top of the radiator and shielded from "splash" ingestion by the downward fold of the forward hood lip.
jerry
Most vehicles have an elbow (or several) in the incoming air line to the air filter. They're designed to let small amounts of ingested water to drain out of the system, but this could be overloaded if too much water is ingested too quickly. In other words, a 6 inch puddle 2 feet across at 10 mph may do nothing, but at 15 mph it may suck water and do that hydrostatic lock thing you experienced. Or a 6 inch puddle 50 feet long at 10 mph might overload the system's capacity as well.
Usually you can look under the hood and see the air cleaner housing, and then trace the Incoming Air side to see where the actual inlet is. On my Honda CR-V, it was routed into the fenderwell. On my Highlander 4-cylinder, it's just in front of the air cleaner box, well ahead of the front of the front tire.
I sup[pose if there was a lot of water there, and if the engine was revving high, and the water was there for 4 full seconds or so, then I can see how this might happen. It might be that in the V-^ engine bay, the intake was placed in a weird place due to tightness in the engine bay.
The damaging effects of water on an engine is well known in some circles - Off roaders find this out occasionally, and then warn their friends. I saw a reference to hydrostatic lock in the instructions for installing a low-restriction air-cleaner - they warned me that hydrostatic lock could happen if I drive thru a puddle. But that's for an air cleaner with no barrier at all to water entry. Your RAV4 should be able to do better than that.
caused droning in my 06 Rav4 v6 Limited 4 wheel drive.
When it was warmed up, droning started when put in reverse and while backing up. Thought it was the transmission.Could hardly hear it from outside.
Crawled under car while parking brake was on, wife stepping on brake, transmission in reverse and could hear the noise above muffler.
Heat shield was vibrating against top of muffler. Must have gotten bent or had a stone lodge between muffler and heat shield , as the problem didn't happen until 6 months
after I had purchased the car.
I bent the heat shield away from the muffler(flimsy shield)
and the problem was solved.
Hope this may solve a few other owners problem.
Based on a friend of mine trying to get a car declared a lemon, I would advise against it. He had much more wrong with his car than a noise and after a year of being at the dealer once or twice a month, he started the lemon law proceedings. It was a very convuluted process which cost him even more time and agony. After much huffing and puffing, the dealer took the car back and gave him a new one. However, he had a so many things wrong with it, like it broke down 6 or 7 times, there were wiring problems, the car would not stop with the cruise control on, and so many more to list here. You may have a problem with your drone issue standing up. Why not sell the thing and buy a new CRV? Or better yet, trade it in for new CRV.
After all this time, let them try the new fuel pump. What do you have to lose? You may have an issue if you don't let them try to fix it. I feel bad for you. It could happen to any of us.
The dealer has been very cooperative so far.
It is therefore entirely possible that what you are hearing, a droning noise, is coming from the combined action, mutual "resonance" of the fuel pump and the fuel pressure regulating bypass valve.
Substituting a lower volume/capacity fuel pump might very well eliminate your droning noise but also might very well result in a lack of sufficient fuel pressure to the engine at WOT and near top RPM.
So as a temporary test, yes, substitute the I4's fuel pump to see if the droning noise disappears. But be prepared to go back to the V6 pump if or when you discover that the I4 pump doesn't provide enough fuel flow.