You are here: Forums Pickups Dodge Ram Dodge Ram Gasoline Engine Questions

Dodge Ram Gasoline Engine Questions

159 messages,  Last post on Nov 09, 2009 at 1:38 PM

You are in the Dodge Ram Forum. Your Host is kcram

What is this discussion about? Dodge Ram Pickup 1500, Dodge Ram Pickup 1500 SRT-10, Dodge Ram Pickup 2500, Dodge Ram Pickup 3500, Engine, Truck

Messages Page 17 of 17 1 ... 11 12 13 14 15 16 17 Prev Next Last

Go To Msg # Search This Discussion

#156 of 159 Dodge Ram cold engine misfire by jshellab Oct 24, 2009 (6:33 am)
#157 of 159 Dodge Ram cold engine misfire by jshellab Oct 24, 2009 (6:33 am)
I had a problem with my Dodge Ram 1500 5.2 liter, automatic misfiring on cool, wet mornings. There was no check engine light. I changed the plugs, wires, distributor cap, rotor and coil to no avail. I took it to a shop, left it for a week since this problem was most evident in the morning. I live in Houston so it wasn't especially cold when this happened. They couldn't identify the cause. Eventually, based on something the mechanic said and just on a hunch I tried heating the ECM with a hair dryer on a cold morning after starting the engine to confirm that it was still misfiring and shutting it down. After about 25 minutes of heating it I started the engine and it ran smoothly. In the warm afternoon when the engine was running fine, I removed the ECM and put it my freezer for about 30 minutes in a ziplock bag. When I reinstalled it and started the engine it misfired, confirming my diagnosis. The shop replaced the ECM and it's been running fine since. This is an odd problem that I haven't seen discussed on any forums so I thought I'd post this to help anyone else wrestling with similar symptoms.
#158 of 159 looking for help with my 1999 dodge Ram by johngaz Nov 09, 2009 (1:38 pm)
#159 of 159 looking for help with my 1999 dodge Ram by johngaz Nov 09, 2009 (1:38 pm)
I have a dodge ram 1999 1500 v8 5.2 and changed the o2 sensor. it ran for about 3 days then started to have issues with the RPM's. I was driving along and suddenly IF I gave it gas it would not go any faster. I could not increase the RPM's but it would keep running If I gave it gas it would keep running nut only raise the speed slowly.. now I have to give it gas to start and it holds at about 6000 RPM. I cannot move the truck the engine dies. I can give it gas but it hesitances I do not get a back fire but the truck will not go faster than 30 MPH or 2000 RPM I hooked a tester to the computer and do see any error codes. before this I did have a error code p 0304 which is why I changed the o2 sensor. the truck has 60000 miles and has really not had any problems. any ideas?

Messages Page 17 of 17 1 ... 11 12 13 14 15 16 17 Prev Next Last

Go To Msg # Search This Discussion

You are here: Forums Pickups Dodge Ram Dodge Ram Gasoline Engine Questions