usually around an hour ,if nothing goes wrong ,but i have had some of those that would take longer because the plugs are really hard to get out sometimes,and a good mechanic wont try and force them out,he or she, will get them loose then use a penetrating oil to help them come the rest of the way out,it once took me over two hours to get a set out so be prepared just in case,most of the time on a 3.0 they come out fairly easy though,good luck.How long should it take a Mechanic too change the spark plugs in a 2000 Dodge Grand Caravan w/ 3 Litre V6?
your welcome.
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it takes a bout an hour if he is slow so just u can judge around that
try it and see
Just say 5 to 10 or more mins per plug especially if he has all the right tools and knows the engine well.
Hope that helps and best of luck.By the way I'd not want to just do the plugs on that vehicle one thing you could do or have a friend or mechanic do is disconnect the spark-plug wires one by one at the ignition coil , take a wire brush and sandpaper and clean the connectors and be sure to dust off the sand afterwards.You might find by just doing that the engine starts to run better most ppl don't do that at all and have sever bad corroded or rusty connections on their ignition modules.
1 hrs more then that the mechanic is stealing your money!
actually i have that engine in my car and they should charge u around 5 hours (that's the book time) or less depending on how good the mechanic is because they have to pull off the intake plenum which is where the back three plugs are.
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