Hemi revs when starting?

From : miles

Q: my new hemi revs to 2000rpms when starting then drops back to idle at about 600. not a big deal but ive never seen an engine do that. is this just the way the hemis are .

Replies:

From : mopaman

mine does the same. i was wondering if that was normal also my new hemi revs to 2000rpms when starting then drops back to idle at about 600. not a big deal but ive never seen an engine do that. is this just the way the hemis are mine does it too 2003 i think its to wake up the hood. -- moparman---remove clothes to reply! --scud coordinates 32.61204 north 96.92993 west-- .

From : milesh

mopaman wrote my new hemi revs to 2000rpms when starting then drops back to idle at about 600. not a big deal but ive never seen an engine do that. is this just the way the hemis are mine does it too 2003 i think its to wake up the hood. talked to my dealer today. he said there are some computer code changes out that should fix it. im taking it in tomorrow and will see. not sure what the connection is but tech said it had to do with a sensor for detecting whether the a/c unit is engaged. .

From : kathy

mine does that too! please do tell if the computer code changes work. mine is going in for service next week. mopaman wrote my new hemi revs to 2000rpms when starting then drops back to idle at about 600. not a big deal but ive never seen an engine do that. is this just the way the hemis are mine does it too 2003 i think its to wake up the hood. talked to my dealer today. he said there are some computer code changes out that should fix it. im taking it in tomorrow and will see. not sure what the connection is but tech said it had to do with a sensor for detecting whether the a/c unit is engaged. .

From : miles

kathy wrote mine does that too! please do tell if the computer code changes work. mine is going in for service next week. just got my 2004 durango back from the dealer. mine was revving to about 2000-2100 rpms when starting. they called chrysler who said it was per design. the dealer started up several on the lot and they all behaved the same. however after they reprogrammed the computer i now find that it revs to about 1500rpms. a bit better. i also noticed a loud resonating drone sound when rpms hit about 1900 no matter what the speed. there is a tsb out for it to change the exhaust mounts to stop this noise. if yours does this the dealer will correct it. .

From : miles

kathy wrote mine does that too! please do tell if the computer code changes work. mine is going in for service next week. just got my 2004 durango back from the dealer. mine was revving to about 2000-2100 rpms when starting. they called chrysler who said it was per design. the dealer started up several on the lot and they all behaved the same. however after they reprogrammed the computer i now find that it revs to about 1500rpms. a bit better. i also noticed a loud resonating drone sound when rpms hit about 1900 no matter what the speed. there is a tsb out for it to change the exhaust mounts to stop this noise. if yours does this the dealer will correct it. .

From : mopaman

mopaman wrote my new hemi revs to 2000rpms when starting then drops back to idle at about 600. not a big deal but ive never seen an engine do that. is this just the way the hemis are mine does it too 2003 i think its to wake up the hood. talked to my dealer today. he said there are some computer code changes out that should fix it. im taking it in tomorrow and will see. not sure what the connection is but tech said it had to do with a sensor for detecting whether the a/c unit is engaged. mines always on so that makes since. even in the winter i run the heat thru my ac. -- moparman---remove clothes to reply! --scud coordinates 32.61204 north 96.92993 west-- .

From : armstrong

mine does the same. i was wondering if that was normal also my new hemi revs to 2000rpms when starting then drops back to idle at about 600. not a big deal but ive never seen an engine do that. is this just the way the hemis are .