Had tune-up done. Used B12 chemtool filled tank then a ball of black smoke then started to sputter like its going to turn off, then it started to accelerate and smoke went away.. A woman worried...
Depending on the type of service that was done; This can occur when the Computer is not reset (if the car is fitted with one). B12 chemtool is an injector cleaning tool, but remember that it will clean the Fuel Tank, try to clean the fuel filter, the fuel pump, and all of the fuel lines. This can cause the Fuel Filter to be filled up with rubbish from the Fuel Tank, Fuel lines, and the Fuel Pump. This B12 chemtool's job is to carry all of this rubbish through the system and even remove carbon from combiston chamber, and push it all down the exhaust and out of the car.
SOURCE: 98 f150 4.2 110.000 miles went to start up engine started clacking and smoking out exhaust
the intakes go bad on these engines....... they leak coolant in the cylinders and cause a hydro lock that causes the rods to bend making the piston skirt hit the crank......" clicking noise" theres a law suit in progress for this issue......... you can find info on the internet
SOURCE: Whole truck sputters shakes when going up a hill
on our 1997 it was a misfire and one of the ignition coils needed replaced.
SOURCE: engine hesitating during acceleration
Ok, there are many issues here that you will need to inspect. I recommend changing the fuel filter and pump as well. this will fix the hesitation. the intake and exhaust manifold gaskets will need to be replaced as well. this will stop the backfiring.
I also recommend checking and running a teat on the PCV valve and inspect the PCV hose as well. it could have a leak or a small crack on it.
Check the air filter and change if needed. this will help with acceleration issues as well. Next, i would run a check on all plugs and the complete wire set as well. change if needed.
Inspect the injectors for leaks and lose wires. make sure they are in good condition. replace any injectors that isn't firing properly.
Ok, there are some sensors that you will need to check as well. i will list them below.
SENSOR CHECK LIST--
1. Check the O2 sensors for worn wires.
2. Check the MAFS(Mas Air Flow Sensors) Check for Damaged, Loose, or Faulty Mass Air Flow Sensor or Circuit.
3. Check the Air Cleaner Temperature Sensor. this sensor could be damaged ro have loose wires. check accordingly.
4. Check the Throttle Position Sensor. this device could be connected wrong or it may be faulty as well. replace if needed.
Be sure and inspect all the above and repair any problem spot you ruin across during your inspection.
Please rate and god bless:)
SOURCE: ford f250 diesiel sputters blows black smoke dies
youll think im crazy but change the oil and look for a oil leak, prob around the fuel filter
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The problem may be that you sucked a bunch of chemtool into the electric fuel pump in the gas tank, that stuff doesn't burn very well and would cause a rough run and black smoke. If it is now running ok with no check engine light on then i would think you are home free.
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