Question about 2002 Chevrolet Blazer
Gonna do my best to explain it to you. See diagram below to refer to what I am explaining. You will need to take the number 1 cylinder spark plug out. Making sure your coil wiring is disconnected have someone in the car turn the key on and off for a brief second (tap it). As they are tapping the engine over you will want the piston in the number one cylinder to be at the very top. You may need to insertt a screwdriver in there to feel if it is up at the top but don't leave the screwdriver in there as the are tapping the emgine as it may get jammed in there and cause damage. So after they tap it feel down there with your screwdriver to see if it has moved up until you are sure it is at the very top of the cylinder wall. When it is at the top you should be at top dead center (TDC). Now as you put insert the shaft of the distributer into the engine the gear at the bottom of the shaft will turn the shaft. You want to insert it as it turns to where the rotor will be facing where the number 1 tab of the distributer cap is located. This may tatke a couple of tries to get it right but you will get used to how it rotatetes as you insert the distributer and make the ajustments to get it right. I think you will understand more as you do it then just what I am writing. Once the rotor is facing the number 1 spot on the cap you should be all set as far as how the distributer goes in. You will then need to set the timing once you get it running. I hope you were able to understand as I am not the best at explaining things. I hope this helps you and good luck. Here is your diagram.
Posted on Apr 01, 2011
Im not sure i understand what you are asking . You say that the vehicle is out of time correct .However on this engine the timimg can not be adjusted at the distirutor shaft like many older engines . The VCM controls this function on the vehicle along with the knock sensor for the correct spark advance under differant driveing condutions . Are you getting any engine codes or is the MIL check engine light on if so and this must be happening if the timing is wrong and the plug wires are hooked up correctly and are not shorting and your sure there not the problem or you don't have a crack in the distirtubor cap check these first . If that checks OK and your sure its not causeing the problem then get the codes read any parts store will do this at no charge . The three things that could cause this are knock sensor crank shaft pisition sensor cam shaft pisition sensor or in rare instantices a worn gear at the base of the distirubtor shaft in witch case you would need to replace the shaft witch is done be removeing the cap and the bolt at the seal to the intake manifold and the hold down for the shaft witch will come off when the bolt is removed then just lift the shaft out after unpluging the connectors . The timing chain is another possibalty but not likely its a dupex chain not a rubber belt with no tensioner system and is not likely to jump a tooth The knock sensor is located near the dist shaft on the right side rear of the engine and the crankshaft sensor is located on the botton of the engine in front of the oil pan and just behind the hormonic balances thats the lower pulley on the engine
Posted on Apr 01, 2011
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Posted on Jan 02, 2017
yes you have to drop the tank. you will also need a fuel line tool to unhook the fuel lines. before you drop the tank see if tou can reach and wiggle the electrical connection on the top of the tank. these pumps have a pigtail issue. please rate
Posted on Dec 08, 2008
if you did not rotate the engine, you put it bsck in the EXACT place it was when pulled out. If you did not mark it, you will need to get #1 Cylinder on TDC and put it in, it should run, but you will need a scanner to set the rotor position (cam ******) to ZERO The distributor does not alter the timing
Posted on Nov 18, 2010
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