Rough Idle; Acceleration Hesitation from Stop; Backfire - Truck Forums

Thread Tools Search this Thread
Old 03-07-2010, 02:47 AM
Junior Member
Thread Starter
Join Date: Mar 2010
Posts: 1
Default Rough Idle; Acceleration Hesitation from Stop; Backfire


I have a 2001 Dodge 1500 pickup with the 3.9L V6 engine. It has approximately 60,000 miles.

The problem is the truck idles fine when it starts up, but after about 5 mins or so when idling, the truck starts to shake and idle low (about 300-400 rpm). The engine does not stall. I can hear a sucking noise from the Idle Air Control (IAC), and it gets louder. Eventually, the noise, rough idle, and shaking disapears and the engine runs very smooth.

This also occassionally happens when the truck is idling at a stop in drive position. When this happens and I try to accelerate, the truck hesitates and I hear backfiring from the exhaust. The truck loses power and will not accelerate. I have to pull over and try to baby the truck to return to normal. I still hear the sucking noise from the IAC when this happens.

I have gotten a Check Engine Light with the P0132 code (O2 signal wire shorted to voltage) a couple of times. I checked the O2 wiring before the catalytic converter, and the wire seems fine. I have replaced IAC, spark plug, ignition wires, throttle position sensor (TPS), and fuel pump. What could cause this problem? This is happening more often, and it is starting to irritate me. I would like some suggestions. Thanks.
Reply With Quote

Related Topics
Thread Thread Starter Forum Replies Last Post
2010 Chevrolet Silverado Slight Hesitation upon Acceleration IronBear Chevy Silverado/ GMC Sierra Forum 23 07-21-2014 09:54 AM
sputter and backfire during acceleration lorennmeg Chevy Silverado/ GMC Sierra Forum 5 09-04-2011 01:04 PM
Silverado studder/hesitation, bad acceleration Townjester23 Chevy Silverado/ GMC Sierra Forum 7 11-25-2009 11:28 PM
Engine Idle @ Stop/ Amp meter twitch CMG1002 Chevy Silverado/ GMC Sierra Forum 1 09-12-2009 04:51 AM
2002 sierra 5.3 rough acceleration perkis General Motors Tech 8 11-11-2007 07:51 PM

2001, accelerating, acceleration, backfire, backfiring, chevrolet, dodge, hesitating, hesitation, idle, losing, power, ram, rough, starts, truck

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Featured Sponsors
Vendor Directory

All times are GMT -5. The time now is 01:10 PM.

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to and affiliated sites.