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Followup To
Question -
I have a 1996 GMC Jimmy with a 4.3 liter engine. The engine was just rebuilt and reinstalled in the vehicle. Upon startup the service engine soon light came on. The code was P1345, which I am told means that the rotor is not properly installed or it is out of time. The cam and the crank gears are aligned properly; however, the rotor don't align properly with the mark. It is either slightly before or a lot after the mark (the v mark on the rotor). It is aligned with the number 1 pin on the rotor cap. It does run just fine with no sounds of a misfire. How can I correct this problem. FYI, It ran fine prior to the rebuilt, with the exception of the metal pieces in the oil.
Answer -
Hi,Bob
The P1345 code is that the distributor is out of phase,in other words not installed correctly,in order to phase the rotor for proper alignment,you need to bring the #1 cyl to top dead center making sure the crankshaft balancer marks line up with 0 on the timing tab located on the timing cover,when that is in line and cyl #1 is at top dead center,remove the dist and reinstall it making sure the rotor lines up with the index mark on the dist housing,the index mark is a V with a 6 stamped into the housing,now the dist drives the oil pump and you may need to rotate the pump drive shaft,i use a long flat blade screwdriver inserted into the hole the the distr was in and line the pump shaft with the dist,it'll take a little finesse to align it,just make sure when the dist is fully seated that the rotor lines up with the index mark,if you need more help contact me,Thanks
ED
Ed,
I'm having a problem understanding one thing. Currently the rotor aligns with the number #1 pin on the rotor cap; however, this pin is 3/16" before the V with the 6 on it. I can't get it to align with this V and if I did the rotor would be 3/16" away from the Number #1 pin under the rotor cap. Thank you in advance for any and all help you can give me.
AnswerHi,Bob
If the dist is installed correctly and the ign wires are routed in the correct order,cyl is at #1 TDC,the rotor should point to the V6 mark,now the cap is a staggered cap meaning #1 terminal is on the oppisite side of were the wire plugs in,the cap is designed to keep the ign wires on one bank all together,same for the opposite bank,this makes for easier routing of the ign wires,in other words #1 #3 #5 ign wires all go to the cap on the right side terminals, while #2 #4 #6 go to the left side of the cap if looking at the distr from the ft of the engine,so if you line up the rotor to the V6 mark and looking at the cap you'll see that the rotor will point to the terminal for #1 tracing the inside terminal to were the number 1 ign wire goes you'll see it acually travels across the cap,hope that makes sense.
ED
