Question about 2000 Cadillac DeVille
CYL 2 MISFIRE CHANGED PLUGS &coil pack
Posted by Anonymous on
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Posted on Jan 02, 2017
check out this tool. Brand new on the market and it quickly can diagnose a misfire from the plug or the coil pack. Here's their website
Posted on Sep 03, 2009
is there a check engine light on? did you change the spark plug wires?
you may have a intake gasket leak or possibly a cracked intake manifold. there is a simple test to try to determine if there is a leak in the intake but it can be potentially hazzardous. with a can of carberator cleaner, spray around the intake gasket and manifold. if the engine revs up, there is a leak. you can also purchase a vacuum gauge and test the amount of vavuum the engine makes. typically 17-22 hg. connect the gauge to a main vacuum port such as the hose to the brake vacuum booster
Posted on Apr 10, 2010
Testimonial: "I checked my intake and found clamps loose. this was left undone after i had work done on my vehicle recently. thamks"
The problems you are describing indicate to me that you likely need to replace the coil pack that runs from the spark plugs ,and the plug wires end up at it.It also may be the spark plug wires,get a water bottle and spray the wires after dark and if you get a light show from them then replace them,if not,replace the coil pack.
Posted on Jul 15, 2010
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