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Just got 87 Dakota 4x4 with 3.9 throttle body injection. when cold will drive for 15mins then backfire and stall , then have to wait 15mins to start again. then it will only drive for 2mins and backfire and stall again, repeat, repeat, repeat. engine stutters before backfire. checked cap/rotor fine, check coil proper resitence, fuel filter and pump are fine. all vacumm lines good. going to check EGR system today??? anyone with suggestions please help my 6 yr old girl is tired of sitting on the side of road with dad!!
thanx
 

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one of the problems that you might have is a faulty thermostat. it might also be the choke not operating properly, vacuum leak at the carburetor or intake manifold, or carburetor float level out of adjustment.
 
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