This ram is gonna drive me nuts.....

[11Ram0utd00rsman]

Its a 2011, i have 290k on it. No i cant afford to buy a newer one yet. A year ago i replaced the cam lifters basic overhaul of the top end of the hemi. It was fine till a week ago when it dropped 2 lifters they were cheap at the time so i went and got them from mopar this time. Replaced all the lifters yesterday put it back together and hit the key. very hard start misfire on cylinder 3 it wont light off. Now the lifters dropped in 2 and 4. Thats fixed no more ticking anywhere. It just runs like crap cause number 3 has no spark. changed the coil i have a ton of em laying around i know 4 coils arent bad yes i changed it that many times. Come to find out i have 12v but no ground trigger from the ECM. ok fine ugh. continuity tested the dark blue wire with an orage stripe (ground trigger) to the ECM. Tested good no breaks. Im left with it all the sudden being maybe the ECM not sending a signal to the coil pack? Will the ECM shut off a cylinder for any reason like that or am i stuck with replacing the ECM and if i do replace it with another one (same model ect) does dodge have to program it or is it direct swap?

 

[GTyankee]

I don't know beans about electronics .........

Is cylinder #3 one of the cylinders that are controlled by the
MDS sensors ?

 

[Hagar1]

Its a 2011, i have 290k on it. No i cant afford to buy a newer one yet. A year ago i replaced the cam lifters basic overhaul of the top end of the hemi. It was fine till a week ago when it dropped 2 lifters they were cheap at the time so i went and got them from mopar this time. Replaced all the lifters yesterday put it back together and hit the key. very hard start misfire on cylinder 3 it wont light off. Now the lifters dropped in 2 and 4. Thats fixed no more ticking anywhere. It just runs like crap cause number 3 has no spark. changed the coil i have a ton of em laying around i know 4 coils arent bad yes i changed it that many times. Come to find out i have 12v but no ground trigger from the ECM. ok fine ugh. continuity tested the dark blue wire with an orage stripe (ground trigger) to the ECM. Tested good no breaks. Im left with it all the sudden being maybe the ECM not sending a signal to the coil pack? Will the ECM shut off a cylinder for any reason like that or am i stuck with replacing the ECM and if i do replace it with another one (same model ect) does dodge have to program it or is it direct swap?

If you need an ECM you might want to check with flagship 1 . I got one from them and I'm happy with it.

 

[11Ram0utd00rsman]

yes, 3,5 driver side and 2,4 passenger side but MDS shouldnt be active if truck is under 30mph. It also will not activate with check engine light on. So as of now its disabled shouldnt be a factor. If im way wrong here please correct me LOL

 

[jws123]

The lifters you removed did it damage the cam at all?do the rockers move up and down I know you say you dont have spark but just starting there. Also any tunes or aftermarket wiring installed for anything?

Out of curiosity is the truck green? Lol i sold my old 2011 2 years ago thats the mileage it would be at about now It had a cylinder 3 missfire when i sold it I saw it passed around fb marketplace few times.

 

[11Ram0utd00rsman]

lol no its a black outdoorsman lol. im gonna head outside now and see what i can figure out yea im gonna pull the valvle cover back off and check to make sure the rockers are moving but gonna chase electrical first see what i can find. i dont understand cause i never had an issue with cyl 3

 

[11Ram0utd00rsman]

just an update the intake pushrod slipped out of the rocker on number 3. THought i found my golden goose but the ECU even after restting still has number 3 shut off how the hell do i force the ecu to turn on number 3. i HATE new vehicles. gimme a distributor and mechanical everytihng anyday.

 

[jws123]

just an update the intake pushrod slipped out of the rocker on number 3. THought i found my golden goose but the ECU even after restting still has number 3 shut off how the hell do i force the ecu to turn on number 3. i HATE new vehicles. gimme a distributor and mechanical everytihng anyday.

Check compression on cyliner 3 I am sure you did this already but move another coil from a good cydinder and try it also you can remove both battery terminals touch them together for 30 or so mins let everything drain flat.

 

[Tominator223]

Check grounds