Question about 1999 GMC Sierra 3500
How do you remove/install a distributor cap and rotor on a 1999 gmc 3500hd 7.4l v8? It is way in the back of the engine. Hard to get at Thanks
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Posted on Jan 02, 2017
Most chevy 5.3 do not use a cap and rotor. Most have single coil per spark plug and wire. Trace spark plug wires to coil usually above the valve cover.
Posted on Dec 28, 2008
SOURCE: 88 GMC Sierra v8 5.7
the firing order is 1 8 4 3 6 5 7 2 driverside head 1357 passenger 2468
get #1 cylinder up on compression stroke and see where the rotor is pointing this will be the start of your firing order goes clockwise
Posted on Sep 22, 2008
A diagram may not be needed as its a reasonably easy fix to do on your own.the distributor ca p will only fit on properly one way because at the base of the cap locaters can only fit the distributor if they line up.When doing the spark plug leads do them one at a time and if nessecary write or mark leads as 1,2 etc .The rotor can only fit on one way but put a mark on the distributor to show where the rotor was pointing when you took it off and if it still points there when the new one is fitted.When changing distributor cap and leads they have to go to the correct place.Pays to mark the outside of distributor cap where the locating bits are On the new and old one.Fit the new cap and rotor then take a spark plug lead and fit to new cap 1 at a time.You can tell by lining up the marks on the outside of the distributor cap when you hold them one on top of the other.Good luck
Posted on Oct 20, 2008
sounds like you haven't indexed the rotor correctly or the cap isn't seated correctly. Did you replace the plug wires correctly? Dis you bump the position of the distributor?
Posted on Mar 13, 2009
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