Question about 2000 Chevrolet Blazer
The past few months my Blazer has not started unless I give it a shot of Ether to get it going. It runs great once its started. I took it to the Auto Store and they gave me these problem codes.
P0300 random multiple cylinder misfires
P0453 Evap emmision control system pressure sensor high
P0452 Evap emmision contol pressuere sensor low
The vehicle has 120,000 and I don't believe any types of tuneups have ever been done.
Try unplugging the battery for ten minutes and see if this can reset the code, if it does not you have a bad Evap emmision contol pressure sensor.
Let us know how it goes.
Posted on Mar 04, 2009
Replace gas cap give it a full tune up make sure you runs wires correctly and use die electric on the plug wires then unhook battery for 5 minutes to clear codes this should solve your problems and remove static from your radio also put a can of fuel injection cleaner to clean your injectors
hope this helps
Posted on Mar 03, 2009
P0300-----One of the hardest codes to track down. The system has detected a misfire that cannot be attributed to any one cylinder.
The best way to go is cheapest first, so install new, properly gapped spark plugs and replace the plug wires. That will leave only the much more expensive coils and ignition control module for that system.
If no change then move on to the fuel system before spending big bucks.
also this could be caused by bad fuel performance or clogged injectors so change the fuel filter, check fuel pump performance, and first try a fuel injector cleaner before removing and cleaning them or replacing them.
O2 sensors are relatively cheap and could possibly set off the code.
P0453 and p0452 is a problem on cooling system or fan in radiator.
Posted on Mar 03, 2009
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