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Re: rough idling,rough acceleration then runs decent when...
You may need to clean the injectors what you can do is you can buy some injector cleaner and see if this helps make Shaw you get a decent brand as the cheep ones do not work as good drive around with this in your gas tank when you have in in your gas tank it helps clean them if you do some harsh acceleration but don't race the motor and don't speed in other words get to the speed limit fast this will apply pressure and will push through any gunk build up there may be some smoke for a while from the exhaust but is will go back to normal when the fuel injector has finished cleaning and all the build up is gone hopes this helps
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Check for any trouble codes in the engine computer, and have the fuel pressure tested. If it is throttle body injection. observe the spray pattern of the injector when it pulses. You should see a cone pattern of the fuel spraying down into the intake. If it drips, or appears anemic, the injector might be partially clogged. Try some injector cleaner in the gas tank.
heh, you might want to change the title here as I am pretty sure you cant idle under heavy acceleration. However I think you were on the right track with the plugs and wires. You didnt mention the cap though and that is usually the biggest culprit in damp weather. Put a new cap and rotor on it and see if that doesnt do the trick.
Depending on vehicle mileage, you are likely ready for a tuneup that would include new
1. Spark plugs
2. Spark plug wires
3. ignition cap/rotor, if used
4. new serpentine belt(s)
5. Fuel system cleaner such as Chevron Techron or Regane
6. New timing chain/belt if mileage warrants--check owner's manual
Barring serious mechanical issues, the above items should eliminate the idling problem OR make it much easier for a shop to trace the real problem using a OBDII Scan Tool.
hola como puedo saber cual es el problema con mi 96 grancheerokie cada vez que acelero despues de 1500 rpm el motor pierde fuerza y avienta explociones por el throurolbody ya cambie los sparkplugs,cables, rotor, cap y el motor ya esta a tiempo firstname.lastname@example.org