Question about 2000 Toyota Tundra

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My ignition coils are going bad every 8-9 months. Is that normal?

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Posted on Sep 10, 2010

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Why do new spark plug coils go bad ?

coils, it has just one coil pack. with 3 coils integrated.
its not COPs.
there are many DTCs related, and not posted.
did you try new spark plugs, then new wires. and then only last the coil pack? check compression.
is it failing the same cylinder? (the will fail in pairs, if the pack is bad)
the pack runs 2 cylinders at once (in series)
injectors leaking or clogged.
since you didnt show the symptoms, i cant help much.

1 month or 1 year?, or how many miles?
answer 1
time, heat,vibration, oil contamination. (pressure washing them)
not using the dielectric grease on the boots.
getting water in the wells over and over, causing flash over , and carbon tracking.
what make you think they are bad.???
my guess, is you see P03xx codes and assume the means bad coil.?
post symptoms.
post scan data, and DTCs.

May 21, 2014 | Jeep Cars & Trucks

1 Answer

2002 saturn ignition coil overheating

Only thing I could think of is the coil rack may have some bad wiring going to that coil. Could a bad ignition module cause a heat problem like that? Heck, I should be learning from you, rather than offering bum advice. Excellent post, Paul. You might check our search feature for this problem and find something helpful. Good luck.

Jun 11, 2012 | Saturn SL Cars & Trucks

1 Answer

P0354 Ignition Coil D Primary/Secondary Circuit Malfunction This is what the scantool came up with on my 2001 Jaguar s-type 3.0 Car has been idling funny but will get cruising on the highway.

this code is saying you have a failing ignition coil..You will have to swap them and determine which one is is the procedure.. DTC P0354; RANDOM MISFIRE DETECTED, MISFIRE DETECTED, (CYLINDERS 1-8) IGNITION COIL PRIMARY CIRCUIT MALFUNCTION, (CYLINDERS 1-8)

  1. Swap the suspect coil for a known good unit.
  2. CLEAR the DTC. TEST the system for normal operation.
- Does the same DTC reoccur? The DTC will indicate if the same cylinder is misfiring. -> Yes
INSTALL a new coil. CLEAR the DTC. TEST the system for normal operation.

-> No

  1. Disconnect the relevant ignition coil electrical connector(s), (PI02 to PI09).
  2. Turn the ignition switch to the ON position.
  3. Make sure the ignition relay is energised.
  4. Measure the voltage between:
- Is the resistance greater than 5 ohms? -> Yes
REPAIR the high resistance circuit. CLEAR the DTCs. TEST the system for normal operation.

Sep 19, 2011 | 2001 Jaguar S-Type

1 Answer

2000 Ford mustang GT 4.6 keeps eating ignition coils for cyl. # 5 & 8 every few months

That is normal
Not likely #5 & #8 all the time. Don't go by codes you get. Walk a new coil,until you find bad one

Oct 10, 2010 | 2000 Ford Mustang

1 Answer

How can I tell if the ignition switch is bad in my toyota camry?

You need a tachometer compatible with the Toyota Camry's ignition system. Start up the Camry's engine and let it reach normal operating temperature. Connect the tachometer tester probe to terminal IG of the Data Link Connector 1. Connect terminals TE1 and E1 of the DLC1 with a jumper connector. Inspect the tachometer's timing. It should be between 8 and 12 degrees Before Top Dead Center. Set the timing as necessary. Tighten the hold-down bolt and make sure the ignition timing advances. Ignition Coils Disconnect the negative terminal from the Camry's battery. Remove the two nuts and clips on top of the cylinder head cover, then remove the cover. Disconnect the four ignition coil connectors and the bolts retaining the coils. You can now remove the coils. Replace the coils as needed. Connect the bolts and coil connections and replace the cylinder head cover.

Aug 31, 2010 | 1999 Toyota Camry

4 Answers

1999 Dodge Ram Van doesn't start,3500- 1 ton, 5.9- v-8 it's got 158,500 miles, 1) doesn't start 2) No spark (Condition: Good fuel pressure)

I'm not familiar with dodge but I know Ford's and GM's have ignition modules that go out and you lose spark.

Apr 07, 2010 | 1999 Dodge Ram

2 Answers

Low acceleration and no power

i would take those 2 coils off and check the backing of the packs. any discoloration indicates they are bad or going bad. coils may be working, but not to full potential due to grounding issues.

Jul 03, 2009 | 2004 Mazda RX-8

1 Answer

I've had three sets of ignition coils go bad on my 2001 Mazda Protege ES within approximately 18 months and 20,000 miles. What could make these coils go bad??

Major problems with 04 rx8s. Flooding etc. Many motors replaced under warranty. Check your plugs, heard that could be a problem, and not sure about this, but also heard that the alternator and voltage regulator my have something to do with it.

Jun 04, 2009 | 2004 Mazda RX-8

1 Answer

Ignition coil

 bad ignition module may be destroying the coil...although I've never heard of such a thing.  Are you sure the coil is bad again?

Mar 26, 2009 | 2004 Volkswagen Golf

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