my 1993 bmw is skipping and i don't know why. Also there is oil leaking from some where but my oil is always good. And sometimes my car will putter and will not feel like it wants to go. what do i do?
2007-05-07 05:08:43 · 5 answers · asked by Anonymous in Cars & Transportation ➔ Maintenance & Repairs
Most of the time you can tell if a plug is firing by starting the car and removing the plug wires one at a time. If the engine pitch changes replace that wire and remove another until the pitch does not change. If you can't tell that way, then you have to remove the plugs and check them visually. If one plug is not firing I would replace them all.
Sometimes a very small oil leak can look like a lot. It is impossable to say where it is coming from without looking at the car.
The putter is probably related the the skipping, It could just need a good tune up.
2007-05-07 05:29:56 · answer #1 · answered by smoke 4 · 0⤊ 0⤋
There are several ways to find a plug that's not fireing. The quickest is to use a clamp on inductive timing light around each spark plug wire with the engine running. The cylinder which is not fireing the timing light will not flash.
NAPA has an inexpensive tester which works the same as the timing light. There are two leads (red=positive) (black=negative) to be connected to your car battery. there also is a curved prope cup which fits the side of each spark plug wire. With the motor running lay the probe against each ignition wire. There's a built in inductive light which will flash in the probe if the plug is fireing. If not you've found the sour cylinder.
Pull the spark plug from the bad cylinder and inspect. If the car has not had plugs, wires Cap get new onrs
2007-05-07 12:26:09 · answer #2 · answered by Country Boy 7 · 0⤊ 0⤋
Your gonna wish you didn't ask! First, wait for a moonless night (no joke). Park your car away from any lights so it is perfectly dark around the car. Raise the hood. Apply the parking brake. Start the engine and leave the car in park. Now have a friend punch the accelerator pedal a few times, waiting 5 seconds or so between revving the engine. You stand by the driver's or passenger's side fenders, and keeping your hands and arms out of the engine compartment (safety warning!), watch the top of the engine closely as your eyes adapt to total darkness. If you see any sparks flying around anywhere, turn on a small flash light to remember which spark plug wire was creating the sparks. That's the cylinder to replace the spark plug and plug wire on if you want to avoid having a full ignition tuneup. Small oil leaks do not necessarily need any repair until they start wetting large areas of the under side of your engine and chassis. That assumes that they're not easy to fix as for major engine seals, gaskets etc.
2007-05-07 12:21:17 · answer #3 · answered by bobweb 7 · 0⤊ 0⤋
if it's the spark plug, while it's on go through removing 1 spark plug at a time each one will make the engine sound like it's skipping a little bit more until you find the one that is the problem then it wont make the engine sound any different.
If it's not the spark plug get it to a garage because leaking oil out of the engine is never a good thing. It always starts as just a little bit.
2007-05-07 12:19:56 · answer #4 · answered by Mike R 2 · 0⤊ 0⤋
if it isn't doing it all the time, then it would be hard to find which one is missing out, take one off at a time and see if the motor soes anything different. you will notice if it does something different! if not all the time jsut have the plugs and wires replaced, and if that soesn't do it then it is the coil pack probably
2007-05-08 13:47:19 · answer #5 · answered by calvin_tyler_l 2 · 0⤊ 0⤋