I searched the forum and could not find an answer to my problem, so here it goes. When I start my truck in the morning it fires right up then when I put it in gear and give it gas it will stumble for a few seconds and sometimes die out. I can put it in "N" fire it right back up put it in gear and no more problems. This will happen when the truck is first started after sitting long enough to cool down, but doesn't do it everytime. Fuel pressure is fine, new idle air solenoid, new TPS, new coolant temp sensor, new O2's, new air temp sensor, new K&N and plugs are at about 40%. Sometimes when it acts up I can throttle through it and sometimes if I just let it idle for a little bit it won't do it, but if it does I'll pop it it "N" fire it back up and take off. Doesn't do it any other time. If somebody knows what it could be or can direct me to a thread about it, I would much appreciate it.
Ron

Ooops I gues this would help 2003 Dakota 4.7

 

on really cold mornings, i would fire my truck right up and back it out then drop her in drive and she would stall. i remedied the problem by either backing into my driveway and/or just letting her warm up.

 

My truck does the same thing if I don't let her warm up good. Thank god for remote start on those cold mornings!

 

my 5 spd doesnt have those probs

 

I have a friend in Minnesota that is a Chrylser mechanic and he said that Dodge has an updated spark plug # for the 4.7's. He is going to run my vin tomorrow and let me know because he has a few cars have similar probs because they were running the wrong plugs. Who would-a-thunk.
Thanks for the input, didn't really think of it as being something that simple. I'll let you know what my friend finds out.

 

+1 :d.

 

i really dont think a spark plug will solve your problem. First of all I would check your TPS again. Make sure you dont have the screws on too tight, that causes the tps to screw up... I did that on my truck once. Second of all, look and listen for any vacuum leaks. the leak may be small enough that it doesnt throw a code... sometimes the vacuum port bypass nipples get rotted and just leak air, ive had that problem before too. Third and probably most important of all, take off your air intake and clean your throttle body really good. A dirty throttle body is the number one culprit for stalling if the rest of your truck is in good running order. And just for good measure, run 1/3 of a can of seafoam through your vacuum line and clean out your combustion chamber...valves may be getting sticky and it takes them a while to warm up.

 

How tight is too tight on the TPS and why would that matter? I have checked the vaccum lines once, but couldn't hurt to do it again. I have already cleaned the TB and upper intake. Thanks for the input.

 

ok put new plugs in and pulled the TB & got it real clean. I also Ohm'ed each coil over while had them off. Still doing it. Drove it from home to store (about 7 miles) no problems, went in for about 10 minutes fired it up backed out then started acting up in about 100 feet. I put it in N turned it off then immediately restarted and didn't have the problem again. I really think it is maybe the crank sensor, cam sensor or could the auto shutdown relay cause this or maybe a sensor on the tranny? This thing is drivin me nuts.

 

does it show any codes? try the key on/off/on/off/on trick next time that happens