The message to which you are about to reply is shown first. GO TO REPLY FORM



 VIEW    REPLY TO THIS MESSAGE    PRINT   SAVE 

Rough Start 850 1993

Well. I highly doubt that its a malfunctioning cold start injector. Never seen one give a problem. Frankly, I can't even remember if a 93 850 HAS a cold start injector.

Considering the mileage on your vehicle, I suspect that the compression is not what it was - that and some worn tune-up parts and colder temperatures with autumn coming on. My recommendation: brand new, no frills spark plugs - NGK BKR6E. Not Bosch, not platinum. Brand new air filter. Nice strong battery. Compression gets lost through worn piston rings, which you can't take care of without a rebuild, and, moreso through worn valve seats or buildup on those seats. Take your car out for a 10-15 minute drive in a low gear so that RPMs stay above 4500. At that RPM, valves start to rotate in their guides and basically renew the valve seats while you drive. You'll be greeted with easier starting the very next day.

Its sometimes a baffling scenario on newer "white" engine Volvos and we all want it to be something complicated or exotic sounding like "cold-start injector" but more often than not its something simple that's getting overlooked.

Good luck.






USERNAME
Use "claim to be" below if you don't want to log in.
PASSWORD
I don't have an account. Sign me up.
CLAIM TO BE
Use only if you don't want to login (post anonymously).
ENTER CAPTCHA CODE
This is required for posting anonymously.
OPTIONS notify by email
Available only to user accounts.
SUBJECT
MODEL/YEAR
MESSAGE

DICTIONARY
LABEL(S) +
IMAGE URL *
[IMAGE LIBRARY (UPLOAD/SELECT)]

* = Field is optional.

+ = Enter space delimited labels for this post. An example entry: 240 muffler


©Jarrod Stenberg 1997-2022. All material except where indicated.


All participants agree to these terms.

Brickboard.com is not affiliated with nor sponsored by AB Volvo, Volvo Car Corporation, Volvo Cars of North America, Inc. or Ford Motor Company. Brickboard.com is a Volvo owner/enthusiast site, similar to a club, and does not intend to pose as an official Volvo site. The official Volvo site can be found here.