97 dakota

1997 ALL OTHER MAKES ALL OTHER MODELS
Avatar
BAUMER1
  • MEMBER
  • 4 POSTS
Ive got a 97 dakota, 3.9 engine automatic. problem is it starts fine ,and runs fine . after it runs fora while and warms up ,30 minutes or so, i shut it off it sets for 10 minutes then when i try to start it . it just cranks and cranks. if it starts it will just die again. had the fuel pump and filter checked out ok. nothing shows up on the computer chack any ideas? please
Feb 9, 2007 at 5:40 PM
Advertisement
Avatar
RASMATAZ
  • CAR REPAIR CONTRIBUTOR
  • 75,992 POSTS
It takes 3 things to create combustion: Air/Fuel/Spark one or two of these missing in action.
Feb 9, 2007 at 5:57 PM
Avatar
BAUMER1
  • MEMBER
  • 4 POSTS
spark plugs and wires all checked ok rotor cap also good what next?
Feb 9, 2007 at 7:49 PM
Avatar
RASMATAZ
  • CAR REPAIR CONTRIBUTOR
  • 75,992 POSTS
Disconnect a spark plug wire stick a screwdriver in it and take it to ground on the engine while cranking it over,do you have spark?
Feb 10, 2007 at 12:01 AM
Avatar
DAKOTADADDY
  • MEMBER
  • 2 POSTS
try the fuel filter...9 times out of ten this is the problem. Hope it's not a gas tank model like my '01:(
Feb 11, 2007 at 4:01 PM
Avatar
BAUMER1
  • MEMBER
  • 4 POSTS
it does have good spark and the fuel pressure is good , it is the same pressure when it is running as it is when it wont start. and yes it is in the gas tank. now what about air? what do i check?
Feb 11, 2007 at 9:34 PM
Avatar
RASMATAZ
  • CAR REPAIR CONTRIBUTOR
  • 75,992 POSTS
Lets try this: crank the engine over and listen to the injectors Are they clicking- If not look for a crankshaft position sensor-investigate thoroughly the PCM has to get that input to pulse the injectors.

It sounds stupid but double check the ASD relay if it has one.

About the air do the above 1st

Good Luck
Feb 11, 2007 at 9:57 PM
Avatar
BAUMER1
  • MEMBER
  • 4 POSTS
thanks for your help. i ended up taking it to a dodge dealer, they finally found the problem, there was a service bulletin years ago on this that was never corrected. they had to update the computer,a problem with the air flow something, i think he said the aic or iac. anyway havent had the trouble so far hope that was it . again thank you
dave
Feb 16, 2007 at 11:45 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.