Hello, My name is Mike,
First of all, based on What I read above is not a coil issue or spark plug issue., I believe the rattle she is hearing is caused from the exhaust manifold has cause this problem, as sense it is loose, it has air leak, which causes like a back compression type of thing. Like a air intake leak. Meaning the Exhaust manifold is of course designed to have exhaust out and goes through your system,and then through your caddilac converters, which of course have 02 sensors. Now, it is possible that sense she ignored this issue, there are a few related issues. Yes, she could of fouled the plugs, by the manifold leak which causes air leak, and which also can cause emission problem like the 02 sensors, if they are bad, will cause the engine light to come on a lot of times and the car to die. I first would check your head gasket (can do with pressure test) and your manifold gasket, and your plug wires and plugs in case they got fouled because of this, and for sure have the 02 sensor checked. MOST all this can be checked if you can get running at all, at AUTO ZONE for free, they put on there hand held computer and can tell you what codes come up to direct it better. If you can not get the car somewhere,then do what you can by checking plug wires, plugs, look at gaskets for leaks, check oil, to make sure no water in oil. But best to get it looked at, especially with engine light on. MIke
228 views
Usually answered in minutes!
×