01 Dakota 3.9-Still problems with idle and start

From : rh

Q: a warped head or cracked block is what im most afraid of. ill pressure test the cooling system too. thanks. you could have the cooling system pressure tested as well and checked for leakdown. it is possible that you may have warped the head. -- if at first you dont succeed youre not cut out for skydiving this group has some great specific information regarding dodge trucks that i have used well and contributed to when i could and i hope will translate well enough for my 1998 isuzu amigo 2.2l its a gm engine. problem i didnt notice the coolant temperature guage until it was into the red line stopped found a ruptured radiator hose replaced the hose filled with water and noticed a white vapor and gasoline smell from the radiator when the engine was cool and running. oil dip stick doesnt show signs of water. engine starts easily when cold and warms up faster than normal i havent started it when warm question in general besides cylinder compression tests what should i look for to determine if ive wrecked the engine or if i only need to replace the cylnder head gasket .

Replies:

From : rh

is the only fuel pump in these vehicles the one in the fuel tank alsocould a map sensor be bad yet not give a trouble code all my symptoms point to these 2 things. hi all i am still having some strange problems with my 3.9 01 dakota. i will say take a half hour trip to the storeit runs greatgo in for 30 mincome back out start it up and begin to drive out of the parking lot and it seems like the idle goes high and lowback and forthlike its revving high and then dropping downat times in reverse it will stall out. another thing i notice is durign the same situation abovewhen i go back and try to starti will turn the key and crank for say 4-5 seconds and it wont startstop for a second then hit the key again and it fires right up. i had an oldsmobile that sort of did this and the problem was a mass airflow sensor. anyone have any ideas what my problem might be i just changed all the wires and plugsair filter and pcv valvethinking these would fix the problem but they didnt thanks rob .

From : proteusdiver

rh wrote hi all i am still having some strange problems with my 3.9 01 dakota. i will say take a half hour trip to the storeit runs greatgo in for 30 mincome back out start it up and begin to drive out of the parking lot and it seems like the idle goes high and lowback and forthlike its revving high and then dropping downat times in reverse it will stall out. another thing i notice is durign the same situation abovewhen i go back and try to starti will turn the key and crank for say 4-5 seconds and it wont startstop for a second then hit the key again and it fires right up. you might want to check the fitting of the rotating part of the hall effect sensor inside your distributor if equipped my 93 3.9 had exactly the same symptoms and it was just a pin securing the rotating part of the sensor that had failed. 10 minutes of work and almost no cost to replace... not the commonest of problems but cheap to fix if thats it... .

From : proteusdiver

rh wrote hi all i am still having some strange problems with my 3.9 01 dakota. i will say take a half hour trip to the storeit runs greatgo in for 30 mincome back out start it up and begin to drive out of the parking lot and it seems like the idle goes high and lowback and forthlike its revving high and then dropping downat times in reverse it will stall out. another thing i notice is durign the same situation abovewhen i go back and try to starti will turn the key and crank for say 4-5 seconds and it wont startstop for a second then hit the key again and it fires right up. you might want to check the fitting of the rotating part of the hall effect sensor inside your distributor if equipped my 93 3.9 had exactly the same symptoms and it was just a pin securing the rotating part of the sensor that had failed. 10 minutes of work and almost no cost to replace... not the commonest of problems but cheap to fix if thats it... .