Header banner
Revain logoHome Page
Bill Lacy photo
Australia
1 Level
696 Review
32 Karma

Review on πŸ”₯ ACDelco D503A Professional Ignition Coil by Bill Lacy

Revainrating 5 out of 5

Coils can fail without failure

My 1994 Chevy S10 misfired at highway speeds in OD (4 speed automatic transmission) (misfires went away when shifting to 3rd), so i replaced my tired old original spool and i have no more misfires. Obviously this coil will fit many vehicles (which use several different mounting brackets) so be prepared to grind down the original rivet heads to reuse the factory mounting bracket. The coil came with nuts and bolts to replace the rivets and was easy to install. It can be helpful to take a picture (with your cellphone, which you never leave home without) of the alignment of the mount and coil before removing.

Pros
  • Highest score for support and durability from testers
Cons
  • Questionable purchase for seniors