Rough idle

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

ptuttle78

Senior Member
Joined
Mar 30, 2014
Posts
131
Reaction score
53
What would cause truck to shake and idle rough?


Sent from my iPhone using Tapatalk
 

bhonshell37

Senior Member
Joined
Dec 15, 2016
Posts
892
Reaction score
275
Location
Washington
Ram Year
2017
Engine
hemi 5.7
Bad fuel filter, misfire, bad grounding wire

Sent from my SM-N960U using Tapatalk
 

Elevated 2013

Senior Member
Joined
Feb 24, 2019
Posts
1,037
Reaction score
772
Location
Huntley, IL
Ram Year
2013
Engine
5.7L Hemi
Bad fuel pump/not enough gas getting to the engine, misfiring on several cylinders depending on how bad it’s shaking. Do you have a check engine light on? If it’s flashing you need to stop driving it.
 

Fitzreefer

Senior Member
Joined
Jun 6, 2018
Posts
182
Reaction score
275
Location
Harleysville, PA
Ram Year
2013 Power Wagon
Engine
Hemi 5.7 L
Other items besides what was already mentioned. Mass air flow sensor (MAF) replaced, throttle body need cleaning? When was the last time spark plugs were replaced? If you have the 5.7 L Hemi it has 16 plugs (2 per cylinder), supposed to be changed every 30 K miles. If your truck is aged, change the plug wires.

Sent from my Moto Z (2) using Tapatalk
 
OP
OP
P

ptuttle78

Senior Member
Joined
Mar 30, 2014
Posts
131
Reaction score
53
Had check engine light. Misfire on cylinder 7. Had quarter tank. Filled it up, then it stopped and the light went off


Sent from my iPhone using Tapatalk
 

Elevated 2013

Senior Member
Joined
Feb 24, 2019
Posts
1,037
Reaction score
772
Location
Huntley, IL
Ram Year
2013
Engine
5.7L Hemi
Interesting. That’s like the exact opposite of a canister purge valve sticking closed as that usually happens after you fill up and doesn’t go away until after you go through some gas. I wonder if it was sticking open and not letting enough pressure build up?? But that wouldn’t cause a misfire. Can you see any history codes??
 

Burla

Senior Member
Military
Joined
Apr 28, 2012
Posts
23,120
Reaction score
44,462
Ram Year
2010 Hemi Reg Cab 4x4
Engine
Hemi
99% you need a new cam and lifters. How many miles, and what was the lubrication habits? OCI and oil brand and weight? Ten guys will say I'm wrong like everytime, and chances are this is the result. Is it mostly low rpm and idle shake? Trust me I take no pleasure in delivering bad news, it is sad we all have to deal with this. You might be .01% as in it was bad gas, I hope so.
 
Top