Chevy Blazer check Engine Light Code P0300
1999 Chevrolet Blazer. 4.3L V6 Vortec SES on. OBDII codes = p0300 p0301 work done prior = fuel injector cleaner, plugs wires fuel filter. Question = engine misfire Random cylinders 1 and 6.
Answer:
A common cause of misfires on this engine is sticking fuel injectors. Injector cleaner does not always
work, if you are referring to an additive you put in the fuel tank. The best way is to have a fuel
injector cleaning service done. This is done by a technician using a special pressurized cleaning
system. This also is not 100% cure, but much better than just adding a cleaner to the fuel tank.
Of course this is assuming there was no sign of the #1 and #6 plugs burning oil or coolant, which
will also give misfires.
Question:
I am trying to get rid of this code but every time i try to clear it comes back
right away. I have replaced everything possible that i can think of that may have caused
the misfire, it all started with a misfire at idle.2000 Chevy s-10 Engine size = 4.3 Vortec
Warning lights = yes codes = P1345. Repairs: replaced plugs wires cap rotor distributor and still have correlation problem and
small misfire.
Answer:
It sounds like you are saying that you started with a misfire, now after these parts were replaced,
you now have the misfire gone, but a code P1345. This is a common problem when replacing the
whole distributor. The distributor is either not in the EXACT correct position, or you need to do a
"Crank - cam correlation relearn:" This must be dine with a computer scan tool. First try and turn
the distributor a little one direction, clear codes, then go back the other direction if code returns.
These are very temperamental. A VERY small adjustment will usually clear this. If you cannot, you
will need to do a relearn procedure as stated above.
Question:
I just purchased this vehicle and it passed smog. I need to know what part needs to be
replaced to fix this problem please. SES light Problem with my 2002 Chevy S-10 Blazer. Warning lights = Service Engine Soon GM Computer codes = P0446 (evaporative emission system vent). Repair work done prior = No recent work and also passed smog within this month.
Answer:
This code P0446 can be caused by a leak in the evaporative emissions system, but is usually caused
by a faulty vent solenoid. The vent solenoid is located above the spare tire. The solenoid is about $45
Have also had a few bad pressure sensors on top of the fuel tank, but P0446 is usually caused by a
sticking / faulty vent solenoid.
Question:
200 Chevy Blazer. Sensor problems , smell of gas flooding , miss dont idle right or run right , have put new coils, and plugs , deftionity , senor problems.
Answer:
On the 4.3L vortec engine in your Blazer the most common cause of flooding and smell of gas is a bad fuel pressure regulator (FPR). It is located under the upper intake manifold and when they leak it fills the inside of the manifold with raw gas. A way to check for this is to pull the dipstick and see if oil smells like gas. The technical way is to install a fuel pressure gauge and look for the pressure to drop after you shut off the key.
