Things that can cause it to go into limp mode: Over heating, low oil pressure....all I can think of. Either take it to Auto Zone or O'Reilleys and get them to do a free scan, or buy an inexpensive scanner from Amazon and see what codes are present. That should at least point you in the right...
If you are going to spend thousands on a transmission build anyway, at least try this first. Nothing to lose but about 10 bucks and it might fix it.
https://www.amazon.com/dp/B0002JMLQU/?coliid=ICTCAHQD0LJWM&colid=AWLOT5KHO12E&ref_=list_c_wl_lv_ov_lig_dp_it&th=1
Probably the same thing that happened to my 2003. Do you seem to have to refill the washer reservoir more often than necessary? Mine would go empty without using it all. What Hamfisted said in post #2. Check out this thread...
Wouldn't that strip the threads out of the head? That was a problem back when the 3 valve 5.4 were unintentionally blowing plugs out of the engine. Then you had to install helicoils to repair the threads.
What I'm seeing in your photo of the gauges is Low side: 110 High side: 110. Low side is way to high, high side is way too low.
When your vehicle’s air conditioning (AC) system behaves unusually, such as having high low-side pressure and low high-side pressure, several factors could be at...
With only $14k left on the loan and only 44k miles, I would keep it. Any repairs you have from here on out would be way less than $80k. Toyotas have a great reputation but that's no guarantee of 100% reliability. Maybe once you reach 100,000 miles, think about a new vehicle. Ha, of course by...
What sounds like an exhaust leak could possibly one of the spark plugs worked a little loose and is getting ready to blow out of the engine. A known problem with the Gen 2 Expeditions.
Pretty much how I did it on my '03 with 5.4 engine. Used 10 gallons of distilled water to drain and fill 5 times. After the last drain, I put in two gallons of concentrated coolant and topped it off with distilled water. Coolant meter shows a 50/50 mixture. Good enough for our Central Texas...
Just curious, but how do you know you have a coolant leak if you can't see a leak? I don't think its wise to just throwing parts at it. If the water pump or thermostat housing is leaking, it should be very obvious. Hopefully it's not an internal leak like a head gasket.
You are correct. A flashing check engine light means an engine misfire. Why not invest in an OBD II reader and find out what codes, if any, it's still showing? The dealer may not be willing to do anything since the problem appears to be gone, albeit perhaps temporarily.
Just spit balling here, but it is possible they only used 2 gallons of the concentrated coolant and filled the rest with water. That would give you about a 50/50 mixture.
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