Took this car for scheduled maintenance, tuneup on 12/19. AFTER the tuneup, it started shaking when in idle or going slowly. Took it back 1/5, they confirmed it was misfiring, checked a computer code, replaced one of the coils. ($120 – they SAID they were only charging me for the part, tho that l…

What engine? How many miles? Has the maintenance been kept up to date? The price was fair. Over the internet you’re paying for only the part. In the shop you’re paying for their expertise, use of their tools, their administrative costs, and use of their bay as well as the part. $120 actually soun…

Everything mountainbike said about the coils is right on. You said that you took it for a “tune up” but the term tune up refers to nothing in particular. Did this tune up work include new spark plugs? If so then, I’d wonder about what kind of plugs went in. Not all plugs are the same and some ca…

Cig’s right. For Toyota products I’d stick with NGK or Nippon-Denso. I’ve had a lot of experience with Toyotas, and any other plug is a crapshoot.

Thank you very much to both of you for your responses. It’s an LE, 4 cylinder, 85,000 miles. I did neglect the maintenance for way too long, about 2 years, 15K miles, before last December. I don’t think it’s burning oil though. The work in December did include replacing the spark plugs. The sho…

Now that you mention it, you should find out exactly what error codes were stored in the computer. Its likely that the evap system code is still there, but there would have been codes related to the misfiring. The codes look like “P1234.” Find out what codes are there & report. If there’s no rec…

If one coil went bad, the other 3 likely aren’t far behind. Some of the coils sold on the internet are junk and some are good. No way to really tell. Go to a NAPA or other good parts store and get their prices. Get 3 new coils from wherever and put them in. On a 4 cylinder it should be a straig…

I’m just seeing UncleTurbo’s comment now, but following up on yesterday’s comments: I went to the shop this morning. The mechanic there told me they use nothing but OEM parts; he was not more specific than that. He also checked the code and said the problem is the same coil that they replaced befo…

You should have the compression checked on cylinder #4. Low compression will lead to a misfire. If the 2nd new coil doesn’t resolve the problem; then weak compression or a defective fuel injector are next items to check out.

I have a feeling they checked the compression the first time; I’ll ask tomorrow. Thanks for your advice.

Toyota Camry 2002 misfiring

Maintenance/Repairs

1looselugnut February 10, 2012, 7:01pm 11

I just fixed my #3 cylinder misfire on my 1996 camry. It ended up being the fuel injector. It checked good using an ohm meter, but it was not working all the time. good luck. I switched injector to another cylinder and the problem followed to that cylinder. I had taken my car to the dealer and they told me my coil was bad, but I told them I had switched coils, then they told me it was my coil connector. The bottom line is they did not know either.

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Toyota Camry 2002 misfiring

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