- 4,487
- YorkshireLand
- SVTlover
That one, ironically enough. Then again, from my experience with the Modular family (two 4.6s, 1 5.4), they all love murdering spark plugs. In fact, that spark plug issue lead to me having to watch my grandfather beg my uncle to sell him back his GMC Sierra 2500 with an LQ4 since the 4.6 that was bought as a replacement spent more time either in the shop or as a land ornament.
Really?
The two 4.6s and two 5.4s we had had no problems like that at all, I don't think they did have anything go wrong with them.