Hard start, hot or cold, is not a starter or battery problem. cranks fine but won't start. has recent tune uo, injectors & throttle body cleaned, new egr valve, new fuel pump & fuel filter.

Make sure battery has a full charge and connections all good. Have helper crank it while you check for spark at the plugs? If spark everywhere, check for fuel injector pulse, engine cranking. check for voltage at fuel injector, goes hot with key on, fuse protected, use a test light, primary wire color pink. As far as engine cranking, don't overheat the starter. Use a gage and check proper fuel pressure, vin w, 55--61 psi, key on engine off. How long since tune-up? Any applicable trouble codes? If you have that spider fuel system, it is noted for problems. I can only help with testing. good luck

Hi,

I would check n replace the fuel filter if needed. Also, it could be one of the spark plugs. Was it running before? Can you think of anything that happened or changed recently?

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tune it up. (fresh spark parts work best in cold and for sure damp wheather.
fresh gas?
leaking injectors?
isc stuck closed, and rpm low, hot?

the ecu, anticipates the next cold start,
it knows how much to open the iSC valve, to get a good start cold
and if colder to day, it opens more. (math)
if it (ISC) is gummed up,fas all do, it cant start right
so next time, try %10 throttle, starting, emulating a good ISC.
see?

Is cranking speed slow? Do a voltage drop test on battery cables.and a high output amp meter to test starter draw. normal ampere draw should be 250-350 amps cold and 300-375 amps hot as engine turns these readings should drop to 200-250 amps if not bad starter.

If it won't crank over, it's not a fuel issue, but a starting circuit issue. The gas may be stale, but if tank was full all that time, I don't think that would be a problem.
Pull off the small wire on the starter solenoid, and see if it has power when key is held in crank position. If power there, the starter or solenoid or the battery connections from battery to starter need to be checked or tested. If no power to solenoid when key is in cranking position, the ignition switch may be bad or the neutral safety switch (or the clutch start switch if a manual) or the starter relay needs to be checked.
If you get it cranking, and still no start, look down the throttle body bore and watch your injector spray pattern while the engine is cranking-you should see a fine, cone spray pattern coming from the bottom of the injector. If it just drips and no cone pattern, or no gas coming out, injectors need cleaning (probably from stale gas). Good luck.

Get rid this vehicle to some pond and buy a new one.

car shuts off when it gets to normal operating range. it takes 10-15 minutes to reach normal range. causes: low coolant, failing coolant tempurature sensor, air in water pump, check the coolant temp. sensor. if it is bad it will send wrong info to engine when hot, and shut it down. ITS WORTH A TRY!! good-day!

Engine is difficult to start when cold

1. Check the battery condition, battery state of charge and starter motor current draw. Replace the battery if marginal and the starter motor if the current draw is beyond specification.
2. Check the battery cable condition. Clean the battery terminals and replace corroded or damaged cables.
3. Check the fuel system for proper operation. A fuel pump with insufficient fuel pressure or clogged injectors should be replaced.
4. Check the engine's tune-up status. Note the tune-up specifications and check for items such as severely worn spark plugs; adjust or replace as needed. On vehicles with manually adjusted valve clearances, check for tight valves and adjust to specification.
5. Check for a failed coolant temperature sensor, and replace if out of specification.
6. heck the operation of the engine management systems for fuel and ignition; repair or replace failed components as necessary.

Engine is difficult to start when hot

1. Check the air filter and air intake system. Replace the air filter if it is dirty or contaminated. Check the fresh air intake system for restrictions or blockage.
2. Check for loose or deteriorated engine grounds and clean, tighten or replace as needed.
3. Check for needed maintenance. Inspect tune-up and service related items such as spark plugs and engine oil condition, and check the operation of the engine fuel and ignition management system.

It could be as simple as a tune-up. Check the spark plugs, distributor cap, wires, throttle body and filters for age, wear, dirt build up or arcing.

When is the last time you had a tune-up on your truck? During the cold winter months, if the battery does not have a proper level of cranking amps it is sometimes hard for the engine to turnover in the cold. You may need a tune-up or battery replaced.