93 850 consensus on spark plugs?

Post by **JimBee** » 28 Nov 2016, 13:24

I think it's time. Bosch coppers? Others?

Post by **rspi** » 28 Nov 2016, 13:50

Volvo OEM.

Post by **misha** » 28 Nov 2016, 14:47

Volvo oem or equivalent:
-NGK BKR6ETUC
-EYQUEM RFC 52 LS3
...the ones which are inside of Volvo oem spark plug package.

Post by **sleddriver** » 28 Nov 2016, 17:55

Bosch, NGK coppers work fine and are inexpensive. Denso is another option. No on Bosch platinum. Yes on NGK platinum. What does your manual say?

Post by **JimBee** » 28 Nov 2016, 18:41

I got the NGK coppers, will install them tomorrow.

Ignition is working. I used the inline tester and a ground wire on the plugs to test each one; they all spark, a couple brighter than the others. And they smell of gasoline so I guess some fuel is spritzing into the cylinders—and there's plenty of pressure at the fuel rail / schrader valve.

Strange that in June it started instantly after sitting since February, which is how it has always started in the 8 years I've owned it, even after sitting for long periods. But now not even a pop, no hint of life!
Maybe the plugs will make a difference. Seems like a long shot.

Post by **sleddriver** » 28 Nov 2016, 19:05

Be sure to properly gap.

I myself would never let any car sit that long without starting it.

Post by **shaker_chi** » 29 Nov 2016, 00:51

I have good luck with Bosch copper. They won't last as long as O/E though.
Good luck.

Post by **erikv11** » 29 Nov 2016, 07:51

a no-start problem sneakily disguised as a plug question!

My first thought is lawn mower syndrome, definitely give the oil-in-each-cylinder routine a try.