Engine Cam Questions and Answers - This category contains
featured questions as examples. They relate to most vehicles.
Question: 1999 Chevrolet Cavalier, miles: 89,200. I drive my
car back and forth to work, no long trips. I started to miss-fire slightly.
I keep driving it and the problem got worse. So I took it in to have the
engine scanned, The repair shop called me to tell me the cam had gone flat.
Have you ever heard of this before? I thought new engines had roller bearings?
Answer: Yes, it is not very common but it does happen, even on roller
bearing valve train engines. One of the problems is the metal that has been
ground off the camshaft and is in your engine. Slowly wearing down internal
engine parts. Evaluate the cost of the camshaft to the cost of a new engine.
You might be money ahead.
Question: 2002 Toyota Camry, miles: 135,000. Hi, I have three
kids and a single Mom, so I don't have much money. I use the internet to
gather information to help me save. I was driving my car when all of the
sudden it stopped. I had it towed to a garage and he told me the camshaft
broke off and it would be $1,200.00 to fix it. Can this be right?
Answer: Well, stranger things can happen. If the camshaft is broken
it will be the first one that we have ever heard of. Have it double checked,
it sounds more like timing belt or maybe a water pump the has locked up
and caused the timing belt failure.
Question: 2003 Nissan Frontier, miles: 115,000. Hello, my truck
is having a problem. When I accelerate the truck Backfires through the intake
manifold. I changed the Plug wires, Plugs and fuel filter but it still does
it. Any suggestions would be appreciated.
Answer: Remove the valve cover to inspect for a exhaust lob on
the camshaft that has gone flat. If this problem is present it causes the
combustion gases to back up into the intake, causing the popping through
the intake noise you describe.
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