Elec-Tran Diagnostics Auto Repair FAQS

Can spark plugs last 100,000 miles?

There have been times when the technicians at Elec-Tran Diagnostics have found spark plugs seized in the cylinder heads of some of our Morgan Hill ~ Gilroy area customers' vehicles with as little as 60,000 miles on them. The removal of these seized plugs can result in hours of labor by our technicians at Elec-Tran Diagnostics. There have been rare occasions when Elec-Tran Diagnostics has needed to remove cylinder heads just to get the spark plugs removed. Elec-Tran Diagnostics suggests that in order for our customers in the Morgan Hill ~ Gilroy are to maintain peak performance for their vehicles, that their spark plugs should not be run longer than 30,000 miles. Elec-Tran Diagnostics suggest that consumers should take those 100,000 mile spark plug marketing claims of manufacturers with a grain of salt.

Satisfied Customers


GIVE THEM A TRY! I am confident you'll enjoy their quality of work!

Eddie Piney
Gilroy, California


He tells you whats going on, does the job right & on time.

Vanessa G.
Gilroy, California

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Morgan Hill ~ Gilroy Transmission Experts!

7585 Railroad Street, Gilroy CA
408 847 3076