5.7 eng shake at 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.

OP
OP
ike43

ike43

Member
Joined
Aug 3, 2010
Posts
31
Reaction score
3
Location
kingston on canada
Ram Year
2006
Engine
5.7
it feels like a high milage eng ichanged plugs to champ copper .045, and cleaned tb and used inj cleaner, no change from before, tried 87 and 89 octane gas really feels like it has a sticking inj or dropping voltage on 1 cyl but only intermittant and slight, im going to hookup a snapon scanner and monitor missfire while running to see if thats whats happening
 
OP
OP
ike43

ike43

Member
Joined
Aug 3, 2010
Posts
31
Reaction score
3
Location
kingston on canada
Ram Year
2006
Engine
5.7
its the plugs, 2 sets of champion copper plugs goes away then comes back , plus ive always had problems with champ for years, but i was told they are the best for hemis, can i not use something better? like iridium to handle the high eng temp?
 

Rich 2500

Junior Member
Joined
Aug 13, 2010
Posts
1
Reaction score
0
Location
Chesapeake City, MD
Ram Year
2007
Engine
5.7
Does it do it in neutral or does it need to be in drive? I had an odd intermittent rough idle in my 07 for a while, a while back, but it only did it in gear, and at a stop if I put it in neutral and back into drive it would go away.
 
OP
OP
ike43

ike43

Member
Joined
Aug 3, 2010
Posts
31
Reaction score
3
Location
kingston on canada
Ram Year
2006
Engine
5.7
oe reccomended plugs and does it in park,neutral and in gear mostly when cold during first start in am
 

Marx

Senior Member
Joined
Jul 4, 2010
Posts
271
Reaction score
24
Location
Southeastern Ontario Canada
Ram Year
2016
Engine
Hemi 5.7L, 345 ci MDS
if it seems random than i think its just your fan kicking on or the ac compressor listen next time for a click or pop noise,
pop the hood and just look at the engine and see it doing it
 
Last edited:
OP
OP
ike43

ike43

Member
Joined
Aug 3, 2010
Posts
31
Reaction score
3
Location
kingston on canada
Ram Year
2006
Engine
5.7
installing new egr valve tommrow even though there is no codes the syptoms point to the egr plus i talk to the dodge dealer and they change them all the time also with no codes , im changing it my self real easy job.
 

ramhunter9

Senior Member
Joined
Jun 25, 2010
Posts
24,464
Reaction score
974
Ram Year
2012
Engine
P-Star Jeep Wrangler
ya its simple to do . good work
 

hemifever

Senior Member
Preferred Vendor
Joined
Aug 10, 2010
Posts
377
Reaction score
107
Location
Apex, NC
Ram Year
2003
Engine
5.7
One common thing these hemi's do at idle is drop to 550 rpms here and there. When it does that the a/f will lean up to around 16 and 17 and it'll shake a little. I've seen others call it the hemi shake lol. But if that is all it is, its kinda normal for some. It's hard to determine if that's all that is happening or not though
 

AWE Daniel

Banned
Joined
Jun 29, 2010
Posts
3,750
Reaction score
0
Ram Year
2004
Engine
Hemi 5.7
One common thing these hemi's do at idle is drop to 550 rpms here and there. When it does that the a/f will lean up to around 16 and 17 and it'll shake a little. I've seen others call it the hemi shake lol. But if that is all it is, its kinda normal for some. It's hard to determine if that's all that is happening or not though

Mine was doing that, I tried cleaning/replacing almost everything, and the dealer told me it was normal. So i said **** that and got a diablo, now I idle at 650-700 nice and smooth and plenty of juice from the alt for my stereo.
 
OP
OP
ike43

ike43

Member
Joined
Aug 3, 2010
Posts
31
Reaction score
3
Location
kingston on canada
Ram Year
2006
Engine
5.7
changed egr, didnt take away idle shake but better accell when drving 50-60 kmh, but maybe your right and its normal because when the eng comes up from idle even just by 100 rpm its smooth, like i said before this is my first hemi , and im not afriad to seek advice, im going to try 1 more thing by installing a set of irridiumn plugs which can handle very high temps, but costly,oh well.
 

KGBIGCOUNTRY

Senior Member
Joined
Jun 29, 2010
Posts
13,309
Reaction score
474
Location
MECH, VA
Ram Year
2004 RCSB/2005 QCSB
Engine
5.7 / 5.7
Your prob half way to a tuner with the amount of plugs you have thrown at that thing.
 
OP
OP
ike43

ike43

Member
Joined
Aug 3, 2010
Posts
31
Reaction score
3
Location
kingston on canada
Ram Year
2006
Engine
5.7
yeah your right , but im picky and really like to be positive if its a plug issue or not, tuner,cai and exhaust coming after winter plus efan,
 

KGBIGCOUNTRY

Senior Member
Joined
Jun 29, 2010
Posts
13,309
Reaction score
474
Location
MECH, VA
Ram Year
2004 RCSB/2005 QCSB
Engine
5.7 / 5.7
Cool sounds like you are getting the mod bug once winter breaks.
 

hemifever

Senior Member
Preferred Vendor
Joined
Aug 10, 2010
Posts
377
Reaction score
107
Location
Apex, NC
Ram Year
2003
Engine
5.7
Mine was doing that, I tried cleaning/replacing almost everything, and the dealer told me it was normal. So i said **** that and got a diablo, now I idle at 650-700 nice and smooth and plenty of juice from the alt for my stereo.

yea I typically set the idle in drive to 696 just for that reason
 

Marx

Senior Member
Joined
Jul 4, 2010
Posts
271
Reaction score
24
Location
Southeastern Ontario Canada
Ram Year
2016
Engine
Hemi 5.7L, 345 ci MDS
my 05 hemi idles fine at 500 rpm 550 rpm with the ac on, id say its a plug or timing issue
 
Top