When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
On cool mornings, when I start my 2000 ranger, 3L , the oil pressure reads 0, for about 30 seconds. After that it reads fine. This does not happen during warm weather. What could it be?