If I haven't started my truck in a couple of days it starts really rough like it was cold out. After letting it warm up for 15 minutes it accelerates rough through 1100-1500 rpm until the engine is really hot then it runs great. Any ideas
SOURCE: stalls and wont idle when cold
Re the trooper. You have a couple of possibles. The most likely is the glowplugs or glowplug relay. Don't be fooled into thinking glow plugs only heat to start - the also do whats called postheat. That is to raise the cylinder temp until the block is warm. IF they are not functioning (clip a light onto one whilst switching the glowplug on to test the relay) this is common.
Most likely is a stuck EGR valve - stuck open so running a very lean mix when cold. Its two bolts on the inlet manifold, pulls out and looks covered in soot - it should push in and spring out. Can be cleaned in petrol or alcohol or with compressed air.
More remote is possible you have a faulty injector...only really testable by an engine centre...
SOURCE: 1995 Saab 900 SE Convertible 2.5L V6 runs rough
Most likely air flow metre. Had same problem analysed and replaced and runs perfectly. Not cheap!
SOURCE: I have a 1999 Ford F450 super duty diesel. It
Replace the glowplug relay.Its faulty.The glow plugs stay on until engine warms up.The engine temp switch then activates the relay to switch off.So it could be the temp switch also faulty.
SOURCE: 93 chevrolet truck bogging down on acceleration
Check intake gaskets. Pour warm soapy water on the gasket when it's running. If it bubbles like crazy, you have a leak. 2. Check timing. Shoot a timing light at the crank mark. If it jumps around a lot, your chain has jumped. #3. check cam. Remove valve covers, run the engine, and see if they are all raisng the valves the same. Put a piece of cardboard along the bottom, and fold it around a little, so it forms kind of a " half valve cover". That way you won't lose oil everywhere, and make a mess, or a fire.
SOURCE: 2000 ford super duty 7.3 diesel will not cold start
you need to have the engine coolant switch
checked,since the computer relies solely on sensors,the ect tells the computer how cold or hot it is so the
computer will make it a rich or lean mixture to start the engine,if it tells the
computer that it is 75 degrees the computer will lean the mixture like starting
a car in the winter without a choke.
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