View Single Post
Old 05-19-2023, 03:17 PM   #12
hatzie
Moderator
 
hatzie's Avatar
 
Join Date: Oct 2008
Location: Wentworth, NH
Posts: 4,916
Re: Only a few cylinders firing?

If you stick with the OEM plugs and wires you won't have many issues. Don't just willy nilly change the coils either. The OE coils will literally run a half million miles.
The LQ4 6.0L in my truck used AC Delco 41-962 Platinum plugs Probably the GMT800 5.3 & 4.8 V8 engines as well. Changing to Iridium AC Delco plugs can cause issues too.

Bosch are typically for central Europe brands like Volvo, Saab, Benz, BMW, VW, Porsche, Audi, Skoda, and Seat among others.

Asian cars typically use NGK. My Stihl power equipment uses them too.

I stick with Mopar plugs in my Chrysler & newer Jeep stuff and Motorcraft in the Ford engines.

AMC is all kinds of fun. They used from Ford, Chrysler, & GM parts bins. I've seen Motorcraft, Delco, and Mopar plugs in AMC engines.
__________________
1959 M35A2 LDT465-1D SOLD
1967 Dodge W200 B383, NP420/NP201 SOLD
1969 Dodge Polara 500 B383, A833 SOLD
1972 Ford F250 FE390, NP435/NP205 SOLD
1976 Chevy K20, 6.5L, NV4500/NP208 SOLD
1986 M1008 CUCV SOLD
2000 GMC C2500, TD6.5L, NV4500
2005 Chevy Silverado LS 2500HD 6.0L 4L80E/NP263
2009 Impala SS LS4 V8


RTFM... GM Parts Books, GM Schematics, GM service manuals, and GM training materials...Please include at least the year and model in your threads. It'll be easier to answer your questions.
And please let us know if and how your repairs were successful.
hatzie is offline   Reply With Quote