06ford f150 truck running think mac tring to rip me off
The truck runs any speed intill it warms up then it knocks and wants to shut down as long as its cold it runs normal he says i need a new engine i think it could be maybe the head gasket or the oil cooler or the oil pump any suggestings i would like not to spend $5000
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Re: 06ford f150 truck running think mac tring to rip me...
Take it back to him either the intake gasket is tore and sucking air or he left something unplugged or even the possibilty of the intake being cracked try to trace down ur coolant leak and get it repaired a.s.a.p.
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It will be either the pick-up coil inside of the distributor is malfunctioning, the Dura-Spark Control Unit is faulty, or the wiring to and around the Dura-Spark Control Unit and running out to the engine is faulty. (I always find these wires on those year Ford trucks to be in very poor condition with a lot of missing wire insulation allowing the bare metal wires to touch each other or to short out on the body ground) The wires should be inspected very carefully and also be certain that you inspect inside of the wire looms for any damaged wires.
You might be able to remove the Dura-Spark Control Unit and have it tested for free at most auto part stores.
The noise is caused by the engine running on after the ignition is shut off. It makes noise because the pistons are rattling in the cylinders from incorrect timing. This has nothing to do with the mechanical or electronic timing of the engine. The engine runs on either because of hot glowing carbon deposits in the cylinder head or because the engine was shut down when it was running too fast. Sometimes the carbon can be literally blown out by running the engine at high rpm for a short time. Put it in second gear and run it for a couple of miles on the highway. If this does not work the heads will have to be removed and the carbon cleaned out manually. The shut down when running too fast problem can be caused by the idle being set too high or by shutting the engine off before it has reached idle speed. If you can adjust the idle speed try reducing it. If not always hesitate before shutting the engine down to let it reach idle speed. Good Luck!
I would check the oil pressure of the engine. The reason is the timing chain tensioners are run with oil pressrue. I think your timing chain tensioners are leaking down when engine is getting to operating tempature . The oil is thinning down as warms up , as it should to lubercate . I would check compression and do a cylinder leak down test on all the cylinders. Then if the compression is good and the cylinder leak down is good. I would change all the timing components, ( chain, timing gears, timing chain tensioners )
DTC - 22 Throttle position sensor error (signal low), is tps connected?
DTC - 23 Intake air temp sensor error (low temp indicated) check and make sure the sensor is connected
DTC - 43 Knock sensor error, ignore this for now, will not cause rich run.
DTC - 53 System voltage too high, check reference voltage from PCM, it should be around 4.5 Volts, this could be the cause of all your problems, the computer will need to replaced almost for sure.
STOP DRIVING IT UNTIL YOU DETERMINE WHERE THE PROBLEM IS!
If the oil pressure dropped and then the knocking started very shortly after that, your engine is receiving NO lubrication or cooling from the circulation of the oil.
Your engine will seize and cost a ton more than it must if you continue to drive it.
What you are hearing is most likely rod bearings and the rattle comes when they no longer have a cushion of oil to keep the metal parts from hammering each other.
Either you have a catastrophic oil leak and have lost most of your oil or your oil pump has failed - the latter is very unusual in a truck only a couple of years old unless it is high mileage already - 100,000 miles/160,000 km or more.
If you are not famliar enough to know NOT to drive it, you won't be repairing that yourself either.