SPONSORED LINKS

Rough idle it fluctuates between 800 and 600 RPMs

Tiny
INTEGRA831
  • MEMBER
  • 2000 ACURA INTEGRA
  • 1.8L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 98,000 MILES
I've been having an idle issue with my car where it fluctuates between 800 and 600 RPMs when at a stop sign or when I'm reversing etc. It has been doing this for a while and I have changed the PCV and ICV and nothing really has changed. There aren't any codes being thrown either so I'm kind of stumped. Any ideas you might have as to what's causing this?
SPONSORED LINKS
Sunday, July 10th, 2022 AT 8:50 PM

14 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
I have seen the linear control solenoid cause this issue, is this the one you changed out? Check the diagrams below. Check out the diagrams (below). Please report back.
Images (Click to make bigger)
Thumb
Thumb
Was this
answer
helpful?
Yes
No
Monday, July 11th, 2022 AT 3:06 PM
Tiny
INTEGRA831
  • MEMBER
  • 9 POSTS
No, I haven't changed that out, would it cause idle to just jump up and down from 900ish RPMs down to like 600? Sometimes when I stop at a red light it feels like it's shutting off and sometimes it's stable.
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Monday, July 11th, 2022 AT 3:51 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
Yes, that is what this part controls, let us know what happens.
Was this
answer
helpful?
Yes
No
Tuesday, July 12th, 2022 AT 10:52 AM
Tiny
INTEGRA831
  • MEMBER
  • 9 POSTS
I recently just changed the solenoid and it's still causing it to not shift down at high speeds and at one point it when into “limp” mode where even in drive it felt like I was not in neutral. Any ideas what else it could be? Maybe the other solenoid possibly?
Was this
answer
helpful?
Yes
No
Tuesday, July 19th, 2022 AT 9:44 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
Did that fix the idle fluctuation?
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Wednesday, July 20th, 2022 AT 12:06 PM
Tiny
INTEGRA831
  • MEMBER
  • 9 POSTS
No it did not, could it be the shifting solenoid? Or could it be that my transmission is going out?
Was this
answer
helpful?
Yes
No
Wednesday, July 20th, 2022 AT 7:35 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
I could be the transmission itself engaging and disengaging, have you checked the transmission fluid level or condition? If not, it could need a transmission service. here is a generic guide to help with specific instructions for your car in the diagrams below:

https://www.2carpros.com/articles/how-to-service-an-automatic-transmission

A/T Fluid

Type .................... Honda Premium Formula ATF
Capacities

A/T Fluid

Change .................... 2.7L (2.9 Qt)

Total .................... 5.9L (6.2 Qt)

Check out the diagrams (below). Please let us know what happens.
Images (Click to make bigger)
Thumb
Thumb
Thumb
Was this
answer
helpful?
Yes
No
Thursday, July 21st, 2022 AT 10:38 AM
Tiny
INTEGRA831
  • MEMBER
  • 9 POSTS
I recently got a check engine light with the code P0740.
Was this
answer
helpful?
Yes
No
Sunday, July 24th, 2022 AT 7:37 PM
Tiny
INTEGRA831
  • MEMBER
  • 9 POSTS
Could it be the shift control solenoid on the transmission?
Was this
answer
helpful?
Yes
No
Sunday, July 24th, 2022 AT 7:38 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
Yep that can do it, or you have a bad torque converter. Can you try the engine idle problem in neutral and see if anything changes? Here is the converter clutch solenoid location in the diagrams below.
Image (Click to make bigger)
Thumb
Was this
answer
helpful?
Yes
No
Monday, July 25th, 2022 AT 12:45 PM
Tiny
INTEGRA831
  • MEMBER
  • 9 POSTS
I know for certain its not the torque converter going bad since I recently changed it about a month ago, I just bought the clutch solenoid and will change it when possible.
Was this
answer
helpful?
Yes
No
Monday, July 25th, 2022 AT 12:47 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
Sounds good, let me know. Like I say if you try the car in neutral or park it will let you know for sure, I have seen rebuilt parts go bad.
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Tuesday, July 26th, 2022 AT 11:47 AM
Tiny
INTEGRA831
  • MEMBER
  • 9 POSTS
So, I have changed the TCC solenoid and it seems like the idle is holding steady when I come to a stop but when in neutral it does shake a bit. Do you think the trans just going bad?
Was this
answer
helpful?
Yes
No
Thursday, July 28th, 2022 AT 9:37 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
I don't think so, the engine has a rough idle now. This sounds like a new problem. Please post your new question here, you must be logged in.

https://www.2carpros.com/questions/new

Cheers, Ken
Was this
answer
helpful?
Yes
No
Thursday, July 28th, 2022 AT 10:31 AM

Please login or register to post a reply.

Related Engine Idle Rough Content

Rough Engine Idle
GUIDE
Rough Engine Idle
A rough engine idle condition is a common issue that many drivers face often indicating underlying problems within the engine, fuel or ignition system. We have created this...
VIEW MORE

Sponsored links