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Why are the spark plugs black on my 1993 Toyota tercel?
if the spark plugs are black because your car is running too rich. your plugs are fouled.
How do you tell if your map sensor is bad on your 1996 4.3 Chevy v6?
It will be smoking black out of the exhaust / Running RICH. Spark plugs will be fouled out/ Black. Replace them if it is running rich. Plugs will not fix your problem. Replace map sensor.
When a 2003 Ford Expedition Eddie Bauer is running to rich what is the most commend problem?
To be 100% sure. Auto Zone will check your codes for FREE. It maybe spark plugs, wires or even a bad coil pack.
Why does mt 2000 ford focus run rich and want to stall?
Change the plugs and plug-wires. DON'T gap the plugs!! Outta the box and into the engine, ONLY!!
Can running rich cause spark plugs to go bad within two weeks?
Yes.
What makes a 1993 Bonneville hesitate and smell like it is running rich when driving you have changed the spark plugs and wires plus the coil packs and removed the plugged catyltic converter?
Have your ignition module and switch checked. I had the same problem and that was the answer.
1986 Ford Econoline v6. Put new ignition module plug wires fuel filter and plugs. It ran fine for a couple days then started bogging and blowing black smoke and the new plugs have black dust on the?
Black smoke is an indication that it is running too rich. The carburetor needs adjusting.
Why would a 1996 Chevy Silverado with a 350 engine be running rich after you changed the plugs and wires?
Try disconnecting your battery for about a few minutes,to allow the computer to reboot itself,then try it again.it is a non cost procedure,and it just might work.
How can you tell if an engine is running lean or rich?
Too rich and you will get black smoke from exhaust. You can also read the spark plugs. way too rich and the engine will bog down or flood out in extreme situations. If it's running too lean, the rpms will get erratic.
Why do catalytic converters burn out?
They fail because of an engine problem. Engine misfire, engine running too rich, converter contaminated with coolant due to blown head gasket, engine burning oil, & bad spark plugs or wires are the most common causes.
Why is there a black substance coming out of the exhaust pipe when vehicle is running?
perhaps the choke is stuck or may be running rich, sometimes the plugs arn't in the right heat range
Would bad o2 sensors make the ford expidition not run right?
Of course, it may make it run bad. However, I would be looking at plugs and wire and coil packs too. I had a 1998 Ford Expedition XLT (4.6L) It has the running ruff. I ran my computer codes. Bad O2 sensor. Running rich. It ended been two bad spark plugs. Therefore, I decide to do a full tune up. Wires & plugs. Everything was running like new after I was done. It took me four hrs to tune it up.
