Slow to start
#1
Slow to start
Since my new transmission is in place and is now running a bit better than it was, I can get back to a previous issue I was having. My 2001 Ram 1500, 5.2 is a bit slow to start. Cranks over fine, just has to turn over to the point that you begin to wonder if it is GONNA crank, to the tune of 5 to 6 seconds. Then when it does crank, it seems to stumble for a couple seconds and smokes a tiny bit due to the flooding while it was trying to crank (this leads me to believe it is a spark issue). I know some Dodges/Jeeps turn over a few times before cranking up but this is ridiculous. I have gone thru the paces. New TPS, new MAP sensor, cleaned out the IAC, new crank sensor that we did when we replaced the transmission, plenum fix, new coil, wires and plugs (all stock replacement). New distributor cap and rotor button. I talked to a buddy of mine and he seemed to think it would benefit from a hotter coil, but my thinking is that if the coil isn't hot enough to crank it right then I have an underlying issue because it used to be good enough. Any thoughts as to what else I should check? Could I potentially benefit from a hotter coil in this situation?
#3
Sorry. I was medicated a bit last night. Damn chronic pain. The fuel pump was replaced on July 2013 and was doing it before that. Fuel pressure is great. Runs dead on 50 and over the course of about 5 minutes leaks down almost none. It was doing it and I was trying to figure it out, hence the new sensors. Then I did the plenum fix, and with it, a new cat and new o2 sensors. Other than this issue, it runs like a brand new one. Just stumped by this. Any help is appreciated.
Last edited by eddiekimberly; 04-09-2015 at 03:57 PM.
#4
Also, a hotter coil will not fix this. You oem coil should start the truck fine. I would start with the basics. I know.., but you have to start somewhere. Could be crossed wires, rotor button top coil spring could have got snagged and bent, (had that happen before), gaskets moved while setting intake down (vac leak), sensor wires pinched, bad IAC , .... many possibilities.
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#8
The system is priming fine. I will try it and see how it does. Like I said, it has been doing it for a long time, then the pump went out. I was certain it was a symptom of the pump and it would be fixed when I changed the pump back then, but didn't help.
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