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rpmdiag, Tech and Instructor
Category: Buick
Satisfied Customers: 8075
Experience:  Since 1975
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It is missing between 40-60 miles an hour, can't figure out

Customer Question

It is missing between 40-60 miles an hour, can't figure out what is wrong
JA: What is the model/year of your Buick?
Customer: 2009 Buick Enclave
JA: Are you hoping to fix this yourself? What have you tried so far?
Customer: We have checked and not sure what to look for.
JA: Anything else you think the mechanic should know?
Customer: That is all we know at this point. We have tried ignition cleaner.
JA: How many miles on the car? How is the battery running?
Customer: New Battery, 93,200/
Submitted: 1 year ago.
Category: Buick
Expert:  rpmdiag replied 1 year ago.

Hi, I’m Ron and I’ll be helping you today.

Before we get started though,Please understand that I don't know your skill level or tools you have to assist us. Also understand that I can't see,smell, hear or touch the vehicle either, so your patience is appreciated. JA is a great place, but it does NOT replace a shop. My goal is to make you happy and get a great rating in return for my time. Sometimes I have to give you bad news that I know you didn’t want to hear, so please don’t shoot the messenger.

Plugs, wires, coils and fuel injectors can all cause a misfire when under a load like that. Start with those components first.

Thanks, Ron