I had to change intake manifolds and now i have to check the timing. Can I simply check the timing at idle or are there different procedures with this ignition. Thanks
If it's the thunderbolt 4 ignition, you have to bypass the computer advance by grounding the purple wire lead at the distributor. Set timing and don't forget to take the grounding wire off.
I dont have this ignition, mine is IV, but... Manual says for V there is a purple and white wire in the harness, with a spade conector, between the ICM and KCM. Run to engine ground with jumper and this makes it run on base timing. Start and use timing light as usual.
Note: it also states that the carb shoud be adjusted with the engine runing on base like this as well.
It's not on the distributor, look up next to the carb on the starboard side. Why is it newbies never seem to think that a simple think like the year has any impact on their engine? All 4.3's are not created equal.
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Did you set it into timing mode and take it out of timing mode at the right time?
Did you read and follow the procedure I posted earlier?
Read item 8, especially the bold part that says important.
I read the instructions and the only thing i couldn't figure out is where it says to remove jumper wire from timing terminal. Is that the same as the purple and white wire for the ground if it's not the instructions never say hook up any jumper wire from the timing terminal. If it's a seperate step to do can you please explain. The engine is a 2003. Thanks
Always connect or disconnect the timing wire to ground with the ignition key OFF.
Look, it's easy.
1. Engine off. Connect purple/white lead to ground.
2. Start engine and make adjustments where required.
3. Stop engine. Remove purple/white from ground.
4. Have a beer... or 3.
Uhhhhh Chris, you might want to read the manual again.
1. hook up purple/white to ground
2. Start engine.
3. Set timing
4. Remove purple/white from ground.
5. Shut off engine.