Where does the distributor Mark go on a GM Truck?
As the shaft gear seats itself, the rotor will turn stamped into the distributor housing. With the shaft gear fully seated, the metal tip of the rotor needs to be pointed pretty close to the “6”. At TDC, that mark will align with a similar notch on the engine block.
Where is the distributor on a GM 4.3L?
The “5-1-3” is not the order of the cylinders on the driver’s side of the engine. As you engine. The distributor cap implies that cylinder “3” is furthest to the front, but that is not correct. If you’re using a Chilton illustrations. It shows the cylinder order as “5-1-3” in one of its diagrams.
When did the GMC 4.3L V6 come out?
The Chevrolet/GMC 4.3L V6, which first appeared in 1985, became the backbone of the automaker’s small truck and SUV lines, and it would continue to evolve for the next three decades as engine controls and designs became increasingly sophisticated. What Others Are Reading Are The GMC Syclone And Typhoon Poised To Become High-End Collectibles?
How can I tell if my GMC Jimmy has 4WD?
Check the front axle coupler sensor (wires to it) by unscrewing and pushing the ball in) which tells the TCCM or 4wd computer that the axle is coupled for all 4wd modes. 4. Check the similar sensor on the transfer case for the encoder motor that engages the low gear for 4LO. 5.
Why does my GMC Jimmy make Rev 2 / 4 noise?
That rev/2/4 thing is caused by an internal broken Sunshell and the neck breaks off all at once usually from drivetrain shock as hard 4wd or towing. Noise could be many things as u-joints, hubs, brakes, tires etc so need to look under it and start checking. Also look at the transfer case fluid and change every 50k as well as trans fluid/filter.
Where is the rear sensor on a GMC Jimmy?
The rear sensor is in the transfer case. The passenger side front axle has a coupler that engages the axle to the front differential when any 4wd mode is activated and a sensor tells the TCCM computer in the cab located in the pass side kick panel its engaged.
How does transfer case work on GMC Jimmy 4WD?
For 4Lo the transfer case has an encoder motor that is on the transfer case that engages a lower gear when you stop, put trans in neutral and push 4 lo and a clunk is heard. Again a sensor on the transfer case to tell TCCM it is engaged. Hope that wasn’t too confusing.