In order to change the spark plugs on a 2005 Chrysler Pacifica w/3.8L engine the upper intake manifold will need to be removed in order to access the 3 front spark plugs. The 3 rear plugs however are very easily accessable. once the upper intake manifold has been removed (approx. 12-15 bolts) the coil packs will need to be unscrewed and removed in order to gain access to the spark plug. Seeing as how the throttle body must be removed, now is a good time to spray it all down with throttle body cleaner and clean out the IAC (idle air control) won't hurt either. A new set of upper intake gaskets will be needed in order to re-assemble the upper intake manifold in order to prevent any vacuum leaks. Make sure to torque all plugs and bolts to factory specs to prevent leaks or even possibly breaking bolts on reassembly. As extra precaution, once the manifold has been removed, I stuffed some workshop towels into the intake manifold on the block just in case I get clumbsy and drop a bolts or even some debris down there.
Job is fairly simple but time consuming. remember don't rush it and work clean and thoroughly and in case you think that you might forget how to re assemble evrything, take out the digi cam and snap some pics along the way as a refference point.
You have to remove the intake plenum to access.
The engine seemed to be missing/chugging when we hit around 80 - 100 km per hour and the engine light came on. This is a huge sign that you need to change your spark plugs and any bad coils.
The spark plugs are 100,000 mile plugs. You need o replace them with platinum plugs, then remove the throttle body and idle speed motor then clean them and reassemble it. There are no spark plug wires on the 3.5L engine.
Read the manual.
Changing spark plugs is an important task. To do this, disconnect the battery and spark plug cables, and remove the old spark plugs. Next put in the new spark plugs, and reconnect the spark plug cables and then the battery.
My Chrysler 300 SRT8 with a 5.7 Hemi has 16 spark plugs
Disconnect the battery, remove the spark plug cables and boot, and remove the old spark plugs. Put in the new spark plugs, attach the cables and boots, and connect the battery.
There are no spark plug wires, this is a coil on plug system. The spark plugs are under the coils that bolt to the middle of the valve covers.There are no spark plug wires, this is a coil on plug system. The spark plugs are under the coils that bolt to the middle of the valve covers.
when do you change spark plugs
remove the coil packs on top the engine with a small tork bit then change plugs
13/16 inch
On a V6, yes.