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What would cause your 1986 Pontiac Fiero 2.5 to jerk driving down the road like it is missing but it idles fine?
Silencer
If you have an automatic transmission, it is equiped with a "lock-up" torque converter. In normal operation, when you reach about 28-30 mph, the converter goes into lock up. The engine RPM will drop about 200 RPM if you maintain speed above 30 mph. But then a slight change in speed will cause the converter to unlock. Many mechanics solved the problem by disconnecting it. The trade off was a little less fuel milage, but the customer was happy. To test this out, drive at about 35 mph. While your foot is still on the gas touch the brake slightly with your left foot. you should feel the converter come out of lock up.
bad spark plug wires recommend you spray water and listen or if you do it at night you will see the plug wires break down the car will start missing when you spray them down
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∙ 12y ago
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Can a oil pressure sending unit cause a 1984 Pontiac fiero from getting fire to the spark plugs?
no but it can stop the fuel pump from running.
What would cause a fuse to spark when you are replacing it in a Pontiac fiero?
There is a load on the circuit. In other words something is turned on and is drawing power. You insert the fuse and will see a slight spark.
What would cause a 96 Pontiac Bonneville to stall while you are driving?
crankshaft position censor
How do you remove Pontiac Fiero blower fan motor?
Open your hood. Its in the middle between the AC aluminum thing and the brake booster. Simple one wire harness, these things are cake, 50 times easier on the fiero cause you dont have to sit on your head. Make sure its not the blower resistor first.
What could be the cause of my enigne idleing to high on a 87 fiero gt?
You probably have a cracked EGR tube The Fiero Store has replacements Google them
What if your flywheel missing teeth on your Pontiac Grand Am?
It can cause a rough idle and random misfires because the engine will be off balance. If the flywheels happens to stop with the missing teeth (tooth) in the starting position, the the engine will not even crank.
What would cause a 2000 Pontiac grand am to quit running while driving it?
Some things that can cause a car to stall while driving it include a bad fuel pump, running out of gas, and low fuel pressure. A clogged catalytic converter can also cause this to happen.
What would cause a 1996 Pontiac Grand Prix to stall while driving and not restart?
the problem may be that the timing chain or belt has broken
Why is my 2000 Jeep wrangler 4.0 liter surging or missing while driving?
The most common cause for surging is a vacuum leak
1995 Pontiac grand prix loss power and dies while driving will start if jump started but dies again when you start driving?
A faulty alternator will cause those symptoms. You might want to get t checked out.
How many quarts does a 98 4cyl cav hold your dip stick is missing?
The 98 cavalier holds 4.25 quarts. of oil approximately. The missing dipstick can cause oil to blow out of the dipstick tube while driving.
What would cause 1998 Pontiac sunfire to surge from 700rpm to 1100rpm while idling?
I think I'd check for a loose, cracked or missing vacuum hose somewhere under the hood. FriPilot
