2007 Land Cruiser stalls to idle and non responsive to gas pedal

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Toyota FJ CRUISER 2007 2010 Service Repair Manual

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1998 to 2007 Toyota Land Cruiser Workshop Service Repair Manual pdf...

Idle control selanoid

Yes, of course! If their previous excessively expensive repair did NOT fix the vehicle, that is PROOF they were WRONG, and that they OWE you a REFUND for the INCORRECT part, AND it replacement labor! Complain to the Federal Trade Commission if they don't do something about their demonstrated INCOMPETENCE ... so far!

replace the IAC valve to resolve this issue.

Well, I can tell you the grade is 5w-30.

Non-synthetic you need to change the oil every 3,000 miles.

Full synthetic, you can go a little longer on oil changes. Like 4,000 to 5,000. Better for higher demand engines. Like hauling trailers and stuff.

As far as the brand, personally I like Valvoline. Other people have different brands they like. But, that just mine.

Hello
Your Land Cruier should pre-heat its self with the glow plug light on the dash board.

The frist thing to check is the glow plugs to make sure that all 8 are working you will have to remove them to test them one at a time,
As you will propley find out at least 3 or 4 glow plugs are down.

The idle up is just to lift the revs in the engine for jump starting or running other items on the car ie carvan,trailer.

As it will only lift the revs buy 200-400 RPMs this will have nothing to do with your pre-heat on the Jeep.

If you still have any problems please contact me
Regards Paul
www.limotec.co.uk

Change every 30,000 miles

check that your cooling system if full of coolant. the coolant that keeps the engine cool actually keeps the gas converter from freezing. alternatively is it hard to start of a morning when cold, if so could be butane wax build up from the gas, in the convertor.