my truck is misfiring

[Cadcom]

If it does turn out to be your muffler bearing, about the only place you can get one anymore is here:
http://kalecoauto.com/index.php?mai...2&products_id=48&zenid=Fwbr50s5pzMQVqPwsIUxe2

Decent price too.

They also have spark plugs, if your spark is in fact leaking:
http://kalecoauto.com/index.php?mai...9&products_id=30&zenid=RaZtdWT0K5ev,LtQNanfH3

No way its a muffler bearing on that model S10. Those were self sealed and self lubricating and self adjusting. I don't think they can ever wear out.

 

[ShawnZR-1]

No way its a muffler bearing on that model S10. Those were self sealed and self lubricating and self adjusting. I don't think they can ever wear out.

Fetzer valve?

Seems to me I remember a recall on the muffler bearings... maybe a different year.

 

[sartac]

Admittedly, I haven't read all the replies. My systematic recommendation would be:

Compression and leak down tests first,

Ignition troubleshooting with all new plugs followed by parts swapping to attempt to narrow issue down to a cylinder (previous mentioned pulling one wire or coil at a time to see if the engine runs worse),

If the problem can be narrowed to a cylinder, but the problem stays with the cylinder after swapping parts, I would suspect injection on that cylinder if the above tests are good.

If the problem can't be narrowed to a cylinder, other suggestions seem proper such as broad ignition components (cap/rotor, PTU (power transistor unit) / ignitor module), fuel and air filters, emissions system, etc.

 

[8675309]

ha! i drive the same model year. looks like we're
truck buds.

 

[linebacker]

My guess would be that the catalytic convertor is stopped up. Check the floorboard area right above the CC. If it is hot, that might be your problem. Seafoam in the gas tank is always a plus.

 

[chucklenut]

my buddy, cadilac joe, is on his way over

he has more tools than me. i have a hammer, dont think that will be much help

 

[mgonza]

my buddy, cadilac joe, is on his way over

he has more tools than me. i have a hammer, dont think that will be much help

Lol hammer fix 98.67% of all problems. It's science!

 

[chucklenut]

Lol hammer fix 98.67% of all problems. It's science!

i know right

my tool box is only an assortment of hammers of various weights and size

 

[blakejohn]

If ya can't fix it get a bigger hammer. And if it don't fit, force it.

 

[Springfield 1911]

my buddy, cadilac joe, is on his way over

he has more tools than me. i have a hammer, dont think that will be much help

Good. If he can't help you I can help you this weekend.