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It's something you have to remove to check.
1) Locate the distributor cap (if you are an amateur, it has the wires coming out of it)
2) Number the wires to match up with the order they need to be plugged back in, some caps have them marked, as do some wires, but just in case, mark the end of the wires with white out so you know what order to plug them back in.
3) Remove the 2 screws holding the cap in (at least that's how many are on my car)
4) Flip the cap over, if there are discoloration marks, then its time to replace the cap. It is also best to do the rotor while you are in there as well.
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∙ 12y ago
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What are symptoms of bad distributor cap?
The distributor cap is important to the performance of the car's engine. Some symptoms of a bad distributor cap are stalling, backfiring, shaking, and a high pitched squealing noise.
How do you know if your distributor cap is bad?
A distributor cap on a vehicle might be bad if the car is shaking more than normal. Other signs include stalling after the car has been running, squealing and rpm's running high.
What would cause no spark in 1986 Toyota pickup?
Bad coil? Bad distributor cap? Bad distributor rotor?
What causes a distributor to send no sparks and if there other part that send sparks to a 1991 Honda accord?
Bad distributor Bad coil Bad distributor cap Bad rotor
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Bad coil? Bad distributor rotor? Bad distributor cap?
Could it be the distributor cap problem in a 2004 Chevy truck.?
I don't know what your specific problem is, but there is no distributor cap.
How do you install distributor cap if the screws are bad?
Replace the screws.
Why does the spark plugs not get spark but the distributor gets power on a 1992 jetta?
Bad ignition rotor? Bad distributor cap? Bad ignition wires?
Where can you find the Spark plug positions on distributor?
Number 1 plug position will be listed on the cap. Now if you know the firing order, and you know the direction the distributor is turning, you then will know plug positions as connected to the distributor cap.
What causes distributor to arc in 98 gmc 1500?
Cracked distributor cap or bad plug wires
Why is it there is no spark in the spark plug leads?
If you know that there is spark at the distributor cap then I would think it would be bad spark plug leads.
Why is your Dodge Grand Caravan not firing?
Bad coil? Bad rotor? Bad distributor cap? Bad Ballast resistor?
