1991 Ford F150 "engine misfires hot under load" Questions

...engine runs fine while cold...once hot seems to misfire under load replace the plug wires this will fix your secondary ignition breakdown. the egr code is due to a bad dpfe sensor which is for back ...

Engine misfires, power loss when warm and under load !998 3.0 Isuzu trooper ciatation. engine rebuilt, new alternator, oil rail preasure switch and thottle body. Starts perfectly from cold and pulls ...

...Engine momentarily loses power - can occur when cold, hot, under load or idling. Taken it to 3 garages, one an independent Audi/VW specialist and nobody can identify the problem. No codes appear on ...

engine will tend to run hot, especially when under load as in uphills etc.You will also hear pinging (spontaneous combustion). If the timing is slow, it will also tend to run hot when under load under

...hot engine ?, cold or both,, EFI runs in 3 modes, cold ,warm and hot. name it. which engine option (displacement)?????? there is no idle adjust, that is the PCMs, job 100%, all the time. Carbs are ...

hot engine or both.? is it just tip-in throttle bogging , only then POWER catches, up? while bogging can you go to WOT and see if it has full power now? ever get a full 60k mile tune up with new spark

...hot and cold engine) the PCM runs in many modes, all matter. x2, i can list 100 things why would you try to guess 100 timings, OP. all that matters in your post i the word MISSING, called MISFIRE. ...

engine that hesitates, stumbles or misfires when accelerating or when it is under load is an engine that is either sucking too much air, not getting enough fuel or misfiring. If the Check Engine Light

hot ? is engine rpm at 800 or more in park. when you shift to drive, the rpm most hold at 800. if not the engine is weak for sure if the fast right foot cant make car move. if the trick above works, i

...Engine is low in power. Einegine doesn't rev up under load and misfires. Noticed fuelpump is a bit noisy. It is also a bit harder to start when hot. Faulty pump? K jetronics fuel injection check the ...