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Melissa Allen 02-12-2019 08:29 PM

09 Outlook
Please can anyone help with this issue. I purchased this 2009 outlook 6 weeks ago from a dealership. About a week or two ago the car started randomly bucking going down the road and threw a check engine light. It came back for a misfire on cylinder 4 and catalytic converter. Last week when driving home from work it suddenly started loosing power and bucking even worse sort of like when you get bad gas. It would barely make it up a hill, not pulling at all and the engine reved up high. Took it to the shop and had the coil packs, spark plugs, plenum and gaskets, catalytic converters and gaskets, exhaust gaskets and manifold gaskets replaced. Picked it up and within half a mile it is doing the same thing but there is no codes. Im lost on what could be wrong. Any ideas??? Note: I also had to put in 2 quarts of oil within a week with no leaks. Please help!!

electbc 02-12-2019 10:59 PM

How cold was it when this happened? No reduced engine power message?

Melissa Allen 02-13-2019 01:15 AM

No warnings at all. Now it is constantly like this.

Melissa Allen 02-13-2019 01:15 AM

No reduced power message.

electbc 02-13-2019 08:59 PM

What it does sound like is that the cats are clogged. Hopefully they did replace them after replacing all the other items and that they are new and not defective.
How cold is it?

scottls 02-22-2019 07:33 PM

Check fuel pressure and all 6 injectors. You can also have your mechanic pull all 6 spark plugs to inspect how they are firing. (to lean or rich, or fouled) while he's at it, have him take note to the compression of each cylinder as he pulls the plugs.

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