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I received my little Actron CP9575 code reader last night and connected it up to the 1999 E-350 van I purchased and had towed to the local Goodyear auto center yesterday. Brake pedal goes to the floor : (.
Anyway, here is the result of the "service engine soon" light being on:
P0705 Transmission range sensor A circuit | Park-Reverse-Neutral low input
P1299 SAE - engine over temperature condition
Now, please bear in mind this van has not been used for about a year. I have not done anything to it. Belonged to town senior center that closed about 9 months ago. Been sitting there ever sense. Right now just trying to get the no-brakes issue fixed so I can work on the other problems.
Hoping someone can help me to get this thing fixed and back on the road.
P1299 Flush coolant from the whole radiator/engine. Make sure the radiator fins are clean. If you clear the code, and it comes on as soon as you start it cold, it's probably a bad wire somewhere.
The overheat code went away. I suspect the prior owner (a township) let the coolant get too low and that might have tripped the sensor. Resetting it so far as not brought it back. Time will tell.
The switch issue HAS returned and I suspect it will need to be at least cleaned (step 1) or perhaps replaced if cleaning has no affect.
P1299 Flush coolant from the whole radiator/engine. Make sure the radiator fins are clean..
Checking another issue this morning RE: leaking fluid from the tranny cooler, I found that the fins on the right third of the radiator were completely blocked up with, probably, blow back from the leaking fluid and dirt. This might account for the P1299 code... maybe sometime last summer or even prior. Code is probably able to be cleared now since it's cold out.
Rather than try to remove the radiator I will remove front grill, place some plastic underneath with sawdust and stray de-greaser from the front. Give that time to work and use a small pressure washer from the rear so dislodge the filth. Repeat as necessary. Compressed air from the back for good measure.
You're on the right track there, maybe use something like brake clean first to begin loosening any built up crud as a first step. I'd use nothing any more powerful than a garden hose to rinse between applications----I've never trusted power washers on radiators or fluid coolers.
Hopefully needless to say be careful of your radiator!