Having problems with your Buick LeSabre ?
Miss under a load (up hill) when car is at operating temperture.worse when tranny shifts in to passing gear.Runs great cold and at slow speeds. I have replaced plug wires and plugs with some improvement but still does it. Also replaced egr valve,air filter,fuel filter,tranny filter and oil.replaced the coils and control module. Car has 70000 miles on it.
Explain problem in detail thanks.
Repair Help & Product Troubleshooting for Buick LeSabre
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