I replaced my 98 olsmobile bravada engine due to it throwing a rod with a used engine and i put on new spark plugs, wires, rotor, crank sensor, cam sensor, and mass air flow sensor. what can cause my new spark plugs to burn out
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Re: new spark plugs gone out
If the odor is not heavy gasoline, then they appear to be oil fouled. The cheap fix is to buy at any auto parts store oil burning plugs or sleeves, these will keep the spark plugs slightly further out of the cylinder, out of the oils way, and should provide a reasonable resolution.
Check the PCV valve and hose, if they clog they will cause oil to enter engien cylinders. keep me posted
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On a Bravada, the engine is positioned so that you have 4 cylinders on your left and right in an 8 cylinder, and 3 on each side in a 6 cylinder. If you look on each side you will see separate valve covers, About 4 inches below these covers are where your spark plugs go in. They will be between your exhaust pipes, where they mount to your engine.
P0304 Code - Cylinder #4 Misfire Detected A P0304 code means that the the car's computer has detected that one of the engine's cylinders is not firing properly. In this case it's cylinder #4.
Symptoms may include: * the engine may be harder to start * the engine may stumble / stumble, and/or hesitate * other symptoms may also be present
Causes: A code P0304 may mean that one or more of the following has happened: * Faulty spark plug or wire * Faulty coil (pack) * Faulty oxygen sensor(s) * Faulty fuel injector * Burned exhaust valve * Faulty catalytic converter(s) * Running out of fuel * Poor compression * Defective computer
Possible Solutions: If there are no symptoms, the simplest thing to do is to reset the code and see if it comes back.
If there are symptoms such as the engine is stumbling or hesitating, check all wiring and connectors that lead to the cylinders (i.e. spark plugs). Depending on how long the ignition components have been in the car, it may be a good idea to replace them as part of your regular maintenance schedule. I would suggest spark plugs, spark plug wires, distributor cap, and rotor (if applicable). Otherwise, check the coils (a.k.a. coil packs). In some cases, the catalytic converter has gone bad. If you smell rotten eggs in the exhaust, your cat converter needs to be replaced. I've also heard in other cases the problems were faulty fuel injectors.
remove front tires and access plugs after taking inner-fender splash panels off. Remove wires with a long hook tool carefully pulling at end of boots. One plug may be blocked by steering shaft. Use hex-ended spark plug socket with open-end wrench to remove that one. Have Fun!
I would replace Distributor Cap & Rotor; and especially all Ignition Wires (aka: spark plug wires) When it is damp outside, old and possibly cracked wires is the leading cause of engines not starting due to wires arcing (throwing sparks to other parts of the engine) and causes no spark where it is really needed and that is at your spark plugs so the engine will start.
This is caused by a lack of oil to the rod bearing. Financially it will be cheaper to get a used engine and replace it as a whole. but if you desire, remove engine, turn upside down, remove oil pan, remove piston rod and bearing cap assy, inspect bearing, will be blue or locked and frozen/welded to the crank due to lack of lubrication. Keep me posted.