valhund
New member
Hello, I have a 2000 Sonoma, It is automatic with the 4.3 V6 and four wheel drive. She has almost 185,000 miles on her, and for the most part runs very well. An issue that I have just seen starting up is the i will be driving to work at around 40 miles an hour and the tach drops a few hundred revolutions for just a second and then goes back to normal. Her idle has not changed and it just does it randomly it seems, but it is starting to happen with more frequency. I appreciate any help that any one can provide, I want to take her to a shop but I can not afford the diagnostic cost. Oh and the check engine light is not on at all. Thank you again