Ford Ranger Forum - Forums for Ford Ranger enthusiasts!

Go Back   Ford Ranger Forum - Forums for Ford Ranger enthusiasts! > > >
Forgot Password? Join Us!

Welcome to Ford Ranger Forum

Reply
 
Thread Tools Search this Thread

  #1  
Old 07-04-2018, 12:12 PM
Redgoat93# Redgoat93# is offline
Learning to use the forums
 
Join Date: Jul 2018
Posts: 1
Default rpm high

greetings new to this site
i recently bought a 1999 ranger 4x4 manual trans,4.0(puskrod)for a weekender...love the truck
heres my question:with fan control off or on when i turn the hvac control switch to ac or almost every position my rpm shoots up to about 900rpm,if i increase rpm and let off the rpm will stay close to where let off..even with ac compressor disconnected and vacum supply to hvac contol head disconnected and pluged off--rpm is normal otherwise
you all have any idea why
__________________
1999 4x4 manual 4.0 (push rod)stock
Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
High rpm when hot tstack General Ford Ranger Discussion 0 06-26-2017 06:45 AM
Pennzoil High Mileage Vs. Mobile 1 High Mileage RangerRoad General Tech 4 04-16-2014 06:30 PM
When do you use 4 high and 4 low joshyddog Drivetrain Tech 18 03-10-2011 05:59 PM
89 2.9l high hydrocarbons and rough high idle dherndon99 2.9 Liter Tech 7 11-17-2010 06:50 AM
My ford Ranger 05 keeps making this high pitch noise when in high gear? rickymercer17 General Ford Ranger Discussion 1 12-08-2008 07:40 PM