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Re: I cant find the spark plugs on my 2004 gmc envoy
Assuming you are talking about the 6 cylinder engine, the spark plugs are under a cover on top of the engine. There is a coil pack on top of each spark plug, the plugs are recessed in the valve cover.
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correction this is a 4.2L not a 2.4L
Do a 2004 GMC Envoy Slt 2.4L have a ignition module?
The engine will turn but want start no spark at the spark plugs boot what could be the cause no spark? AmanStino 3 USB ports Car charger with 1 Type port AmanStino
Attached is a diagram of where the plugs and coilpacks are located, you need to remove the air intake resonator box to access this area. Plugs should be changed around 100K miles. Use only AC Delco 41-103 Iridium plugs. #1 is the coilpack and #5 is the spark plug
Assuming you have the 6 cyl. engine, the plugs are located under the airbox (the black box with Vortex on it). Each coil pack must be removed to get access to the plug (see figure below). Be very careful in removing the bolt holding the coil pack.
I have a 2004 GMC envoy with a V8 and its not to hard the drivers side plugs are not to bad to get to but the passanger side is a little tricky you have to go through the wheele well to get at them also the spark plug boot are really on there tight and were hard to remove them
Well first you will want to get the right size spark plug socket , the rigt sized one for your envoy and then next you will want to remove one spark plug wire at a time so you do not cross any of the wires or if you do you will mess up the timing for the envoy now how to remove a spark plug wire, look first at the plug wire and then gentky twist the wire on the end that goes over the spark plug and carefuly pull back but do not break the wire, next with an extention and the socket put the socket over the spark plug and turn the plug counter clock wise until you have removed the plug and then put the new spark plug in and place the spark plug wire back on the spark plug and just repeat the prosses on the rest,agin do them one at a time that is how I change spark plugs and wires and i have been doing it for years.
I WOTLD PULL THE SPARK PLUGS AND RECHECK THEM.I HAVE INSTALLED PLUGS AND CRACKED THEM OR BENT THE SPARK PLUG END CLOSED.LOOK FOR BLACK CARBON TRACS ON THE PORCELIN OF THE PLUG OR TORN BOOTS
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