Question about 2003 Toyota Highlander
V-6 94,000 miles well maintained When I shot the engine off in the garage I can smell raw gas. I replace both sensors in the manifolds about 20,000 ago.
Stop shooting engine and leaks will , decrease some. LOL !
2004 Toy Highlander.
what you replaces is of no bearing.
what counts is realty.
find the leak.
if it really is raw gas, do not drive car or garage it.
park it far from home and people. (curb it.)
gas fumes if not real raw fuel (liquid) can come from EVAP canister
hose fell off.
first look for injector leaks (outside body)
and fuel hose leaks, (look at these first as they are 10x more dangerous that others)
does the PCM scans show DTC errors?
scan it, what do you have.?
if there is raw fuel dripping from the exhaust manifold that means
the INJECTors are stuck on or leaking, this is one of the most dangerous conditions on all EFI cars.
they to look more carefully
or better get a ASE mechanic to check the car out.
Posted on Feb 13, 2014
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Posted on Jan 02, 2017
The valve cover gasket change is related only to the extent of needeing to remove something else . There is the fuel pressure regulator and the MAF SENSOR talks to the ECU telling the computer how much fuel is needed for proper mixture of thre air passing into the intake. It is the first sensor in the intake duct coming out of the sir filter. Make sure all the injectors are secure in wiring connection and look around for any other that had to be removed. All plugs mean it isn't just one injector. Unplug and replug the MAF. cHECK THE THROTTLE POSITIO SENSOT. iT RIGHT THERE where the fuel likage is attached.
Posted on Jun 02, 2009
Get it out of the garage! Go over the entire fuel line(s) looking for any wet spots. Key on, but engine not running. Look carefully at joints of hose to piping and all along any hoses. Replace any hose that is hard or has cracks. Inspect the injectors for any leaking. NO open flames!!
Posted on Aug 11, 2009
Ok..it sounds like you are getting good gas...but you have to check and see if you are getting spark...and compression...But check all your fuses first...and have someone crank it over with the Dist. Cap off, and make sure it's turning..dont stand to close while doing this..and if it is not turning...you probaly popped the timing belt....
Posted on Dec 04, 2009
i checked the fuel econ. of new one and its 31 city. if you have no light on or codes then your fuel system is ok.tire pressure type make a difference.
but ive got to tell you every time i had a warranty complaint of poor fuel mileage i would go for a drive with owner at the wheel and it was there driving habits that caused it.sometimes it was they did not understand how those fuel econ. meters alot of cars come with work
Posted on Mar 21, 2010
Testimonial: "Thanks a lot. It has been the same driver. my wife, and location (in the mountains). We have changed the tires for more rugged type. Still, thanks."
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