GMC Yukon 2000–2006
Common on this vehicle:
Possible causes
The documents say what to doOnly records name itThe size of a node, the width of a link and the numbers are records matching this search, not likelihoods.
FaultCrate・GMC Yukon 2000–2006・Exhaust and emissions
Candidate cause (the documents say what to do)
Coil Ground Ring Terminal: loose or misadjusted
1 of the records matching this search name this component as the cause.
How to tell
P0420P0430
What to do
- If the converter has failed for no apparent reason, inspect for a poor crimp at the ignition coil ground terminal on the engine block for the affected bank.
- Inspect the ground for corrosion or damage at the terminal ring, fasteners and grounding surfaces.
- If no corrosion or damage is found, tighten the ground bolt to the proper torque.
In the records
- Coil Ground Ring Terminal: repaired 1
See the evidence (1 technical documents, 1 records)
Manufacturer’s documents
- Premature Catalytic Converter Failures – Inspection and Repair PIP5232C 2017-08-15
A cause or a result a complaint states is the owner’s view or what a dealer told them, not an established fact.
Put together by FaultCrate from public records and technical documents. The cause and the repair are for the workshop to decide with the vehicle in front of it. Counts are records, not failure rates.