Last post on May 18, 2013 at 5:41 AM
You are in the Toyota Highlander
What is this discussion about?
Toyota Highlander, SUV
#4874 of 5314 Re: 2002 Toyota Highlander Oil Consumption [steves_toyo]
Jun 10, 2010 (10:19 am)
See also 4858. No one has responded about whether the PCV valve solves the problem.
I hope it does! It's an easy replacement, a $6 part, 15 minutes. It's in the rear head cover (that's what Toyota calls it - we call it a valve cover) on the passenger side, takes a 19mm wrench. Not much room to move, but enough. The spring clamp moves with finger pressure, you might need a screwdriver to loosen the hose.
I haven't done any highway miles since I replaced mine, we'll see.
#4875 of 5314 2002 Highlander oil consumption
Jun 10, 2010 (1:51 pm)
My Highlander, on a trip out west was using a quart every 200-250 miles when I drove over 70mph. Speed limits in these states are 75mph. If I held the speed at 70 or less the oil loss dropped sustantially. When I suggested to my service dept. that I felt that the PCV valve was bad I don't think they beleaved me. At the 100k service tune up the PCV was replaced and the problem was solved.
#4877 of 5314 Re: 2002 Highlander oil consumption [kenabr]
Jun 20, 2010 (5:17 pm)
Wow that is amazing that it is the PCV valve. I have a similar problem only at HWY speeds > 70-75 mph with oil consumption on my 2002 Highlander. I have a couple questions: Do you know if that was the original PCV valve"> (i.e, never been replaced before)? And do you know the details on what is happening to that oil when the pcv valve isn't working? Did you check the hose that connects the PCV valve to the air intake manifold to see if it was coated with oil? Just wondering if the oil was being sucked through the PCV valve up into the intake manifold which eventually gets burned in the cyclinder combustion. Thanks!
#4878 of 5314 Re: 2002 Toyota Highlander Oil Consumption [jrfiero]
Jun 20, 2010 (9:10 pm)
Have you driven any HWY miles yet to see if the PCV valve has fixed your excessive oil consumption problem? Let me know if it does. I'd be VERY interested. In #4875, this did fix his oil consumption problem. Thanks!
#4879 of 5314 Re: 2002 Toyota Highlander Oil Consumption [steves_toyo]
Jun 21, 2010 (6:31 am)
I haven't driven any highway miles since replacing the PCV. I have a trip planned in August, and I'll be paying careful attention.
I'll let everyone know after that trip.
I did read 4875, and was happy to see it.
#4880 of 5314 EVAP hose CEL
Jun 23, 2010 (7:00 pm)
I have a 2003 highlander. Its Check Engine Light came on recently. I had the code scanned and it reported P0441, P0442, P0446.
Many messages on the web suspected it was caused by a hose knocked off. I found a loose hose from the case of air filter.
The rubber hose (about 1/2 inch wide and and a foot long), which comes out of the air filter case at the top of the driver-windshield direction (right below many wire-looking tubes), is connected to nothing.
And there is an upward metal tube, located right below the rubber hose, with an upward opening.
I think I should connect the free rubber hose to the metal tube by covering the metal tube with the rubber hose.
Am I doing the right thing?
Thanks a lot.
#4881 of 5314 Re: EVAP hose CEL [dahan]
Jun 23, 2010 (7:28 pm)
My 03 did the same thing. i recconnected the hoses and relocked the air filter housing which had popped open., It took about 3 weeks for the CEL to go away.
#4882 of 5314 Re: EVAP hose CEL [dahan]
Jun 24, 2010 (11:14 am)
Yes, connect that hose to the pipe. It usually pulls off when the air filter is changed but takes a few hundred miles before it turns on the CEL and/or the VSC lights.
If you want the CEL to go away faster, disconnect the battery for a few minutes then reconnect.
I usually pencil down the station numbers in the radio memory rather than have to figure them all out again.
#4883 of 5314 Re: EVAP hose CEL [bikeman3]
Jun 24, 2010 (11:40 am)
If you disconnect the battery and live in PA, the emissions test will show that you did it and will not test your car until it is reset thru normal driving or by a mechanic