Question about 2001 Ford Expedition
My truck scubs extremly hard when stopping. the thermostat needle stays on cold.And while driving it shakes bad until i give it more gas. i have replaced the coils and plugs. and i recently bought a new fuel filter.
Posted by Anonymous on
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Posted on Jan 02, 2017
P0316= misfire in 1st 1000 revolutions when start ups.
P1270 - Engine RPM/Vehicle Speed Limiter Indicates the vehicle has been operated in a manner which caused the engine or vehicle to exceed a calibration limit.
The engine rpm and vehicle speed are continuously monitored by the PCM. The DTC is set when the rpm or speed falls out of calibrated range.
For additional information on the engine rpm/vehical speed limiter:
The Electronic Engine Control (EC) system, Power train Control Software. Wheel slippage (water, ice, mud and snow) Excessive engine rpm in neutral vehicle drive at a high rate of speed
The DTC indicates the vehicle has been operated in a manner which caused the engine or vehicle speed to exceed a calibrated limit.
There has to be more Codes in the DTC that you are missing, You should have P0300 codes which is an indication of miss fire and P0301 to P0308 will indicate which cylinder has the miss fire. IE: P0301=missfire in cylinder #1 and P0308 is miss fire on #8
There should be other codes to, that would indicate why they are miss firing.
Good luck and hope this helps.
Posted on May 06, 2009
SOURCE: code p0302
Look at the wire and plug to cylinder 2, for cracks or damage, if nothing is found run a compression test need 100psi min, and then check the injector, you need to meshure resistance with a multimeter, and compare to other injectors something like 12 to 15 ohms would be good i think.
Posted on Dec 31, 2009
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