SPONSORED LINKS

Idles will not rev past 1,100 RPMs

Tiny
MOTORCAR222
  • MEMBER
  • 1997 DODGE RAM
  • 5.2L
  • V8
  • 257,098 MILES
Did tune up and new IAC and bank 1 sensor 1. Truck starts and idles fine but will not rev up past 1,100 RPMs. Today I tested with vacuum gauge, and it stayed steady at 11. Book says valve timing. It seems to me to be either a vacuum leak or timing. Did a TDC and rotor pointing a #1 on cap.
SPONSORED LINKS
Wednesday, March 16th, 2022 AT 7:27 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,755 POSTS
Hi,

The vacuum is low. I would expect it to be around 15 to 18 inches of vacuum at idle. Start by checking for leaks.

Here is a link that explains how to do it. Also, if you find no leaks, let me know if you checked engine compression.

https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge

https://www.2carpros.com/articles/how-to-test-engine-compression

Let me know what you find.

Joe
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Thursday, March 17th, 2022 AT 3:20 PM

Please login or register to post a reply.

Related Engine Low Power Content

Fix an Engine with Low Power!
VIDEO
Fix an Engine with Low Power!
Instructional repair video
Symptoms of Low Engine Power
GUIDE
Symptoms of Low Engine Power
The power your car's engine is producing is important. When you step on the gas you need your car to accelerate, mainly to keep you out of trouble when getting onto the...
VIEW MORE

Sponsored links