1999 Mitsubishi Diamante Own Putters Start Driving Occasionally While M

1999 MITSUBISHI DIAMANTE
176,000 MILES
Avatar
ANONYMOUS
  • MEMBER
  • 1 POST
The diamante I own putters when I start driving and occasionally while I'm driving. It also idles really low to the point were it almost stalls out while I'm stopped. It also jumps when I come to a stop almost like it jumps into first gear when I'm slowing down around 20 mph. Any ideas.
Mar 25, 2013 at 4:11 AM
Advertisement
Avatar
RANDICO
  • ASE Certified Mechanic
  • 174 POSTS
  • ASE Certified Mechanic
Sounds like 2 separate problems, For the low RPM you are equipt with a IAC (idle air control) motor, this is a stepper motor that make continuous changes. To maintain desired idle, If its worn it need to be replaced. Slowing down and the transmission jumps, Hows the reverse gear? Does the engine jump? have the motor mounts look at, And also worn out transmission fluid can cause this sudden jump. So can a worn out transmission but that something else.
Mar 25, 2013 at 4:47 AM
Avatar
HMAC300
  • ASE Certified Mechanic
  • 48,601 POSTS
  • ASE Certified Mechanic
if it doesn't say expert by name thenthese are not 2carpro people. scan for codes and check fuel pressure first, clean throttle plate and iac hole with choke cleaenr if you have an iac engien has to run right prior to checking out transmission
Mar 25, 2013 at 2:11 PM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.