SPONSORED LINKS

Rio JB RPM drop after AC turn on

Tiny
WIRSHA
  • MEMBER
  • 2006 KIA RIO
  • 1.4L
  • 4 CYL
  • 2WD
  • MANUAL
  • 100,000 MILES
I have kia rio jb hatcback 2006, and I ve already replace Idle speed control with a new one, but idle rpm still drop and sometimes engine turn off or knocking, is that any wiring or something beside ISCV sensor, what I have done :
1. Carbon clean
2. Replace spark plug
3. Replace spark plug wire
4. Replace ISCV

thank Q
SPONSORED LINKS
Friday, June 20th, 2014 AT 3:01 AM

5 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Try cleaning throttle plate on both sides and iac hole with choke cleaner see if that helps.
Was this
answer
helpful?
Yes
No
Friday, June 20th, 2014 AT 6:25 AM
Tiny
WIRSHA
  • MEMBER
  • 3 POSTS
I have already clean TB and both of side the plate with carb. Cleaner
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Sunday, June 22nd, 2014 AT 5:31 AM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
I can't say anything about the knocking as I can't hear it, but scan for codes and check fuel pressure with a gauge one will show something.
Was this
answer
helpful?
Yes
No
Sunday, June 22nd, 2014 AT 8:14 AM
Tiny
WIRSHA
  • MEMBER
  • 3 POSTS
How to check fuel pressure?
Was this
answer
helpful?
Yes
No
Sunday, June 22nd, 2014 AT 7:21 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
If in U.S. Most major autoparts rent the gauge there shold be a shcrader valve on fuel rail if not it will require adapters.
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Monday, June 23rd, 2014 AT 6:44 AM

Please login or register to post a reply.

Related Engine Revs Up Content

Idle Air Control Motor Replacement
GUIDE
Idle Air Control Motor Replacement
The idle air control motor or idle speed control motor is designed to adjust the air flow into the intake manifold at engine idle. Engine idle speed is monitored by the PCM...
VIEW MORE

Sponsored links