woodard78 Posted December 6 Share Posted December 6 I have a 1991 Comanche sport with the 2.5 the truck sit for a few days with the snow we got Went out and tried to start it and all it will do is crank over it’s getting fuel and fire but still no start any ideas what to start looking for Thanks Link to comment Share on other sites More sharing options...
pizzaman09 Posted December 6 Share Posted December 6 I assume you have checked for spark? Link to comment Share on other sites More sharing options...
woodard78 Posted December 6 Author Share Posted December 6 Yes sir Link to comment Share on other sites More sharing options...
eaglescout526 Posted December 6 Share Posted December 6 On the bright side, it’s an HO so you can treat your symptoms like it’s a 4.0 HO. Link to comment Share on other sites More sharing options...
pizzaman09 Posted Sunday at 03:25 PM Share Posted Sunday at 03:25 PM 20 hours ago, eaglescout526 said: On the bright side, it’s an HO so you can treat your symptoms like it’s a 4.0 HO. It's a 2.5L, I am generally not in the know but did the 2.5L get similar upgrades to the 4.0 HO in 1991? Link to comment Share on other sites More sharing options...
eaglescout526 Posted Sunday at 03:34 PM Share Posted Sunday at 03:34 PM 8 minutes ago, pizzaman09 said: It's a 2.5L, I am generally not in the know but did the 2.5L get similar upgrades to the 4.0 HO in 1991? Yup! Went from the Renix TBI to Chrysler MPFI HO. Link to comment Share on other sites More sharing options...
woodard78 Posted Monday at 06:44 PM Author Share Posted Monday at 06:44 PM Any chance it could be the crank sensor Link to comment Share on other sites More sharing options...
eaglescout526 Posted Monday at 07:46 PM Share Posted Monday at 07:46 PM Crank sensor would cause a no spark condition but will allow the engine to crank over, just not start. Link to comment Share on other sites More sharing options...
woodard78 Posted Wednesday at 03:59 PM Author Share Posted Wednesday at 03:59 PM I’m really at a loss on this one may check and see if the injectors are working properly Link to comment Share on other sites More sharing options...
Ωhm Posted Wednesday at 04:36 PM Share Posted Wednesday at 04:36 PM Having SBEC, can he do blinky codes? If so, anyone know how it's done? Link to comment Share on other sites More sharing options...
Eagle_SX4 Posted Wednesday at 05:27 PM Share Posted Wednesday at 05:27 PM This may help. I don't know if the codes are different for the 2.5 but might get you started. Link to comment Share on other sites More sharing options...
hgeranium Posted Wednesday at 08:16 PM Share Posted Wednesday at 08:16 PM What's your fuel pressure look like at the rail while you're cranking? Link to comment Share on other sites More sharing options...
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