Woke up this morning to my 99 Dodge Ram 5.2 dying when I started to drive it. Starts fine but just would die when I put it in gear. I just replaced the fuel pump maybe a month ago ( Delphi). It does every now and then gives me a hard start but not enough that it would be causing concerns. It did it twice since pump was replaced. I have replaced pretty much everything on the throttle body. I starts right back up but when I out it into gear is when it stalls. No codes at all. I'm thinking maybe a fuel issue? I will try to do a pressure test once this weather clears up. Been dealing with a lot of rain here lately. What you guys think?

 

Generally, those are signs of a failing crank sensor. If you replace it, use ONLY a genuine mopar sensor.

 

I went to NAPA today bought it. I was going to replace that a while back but since truck was running, it was sidelined till now. I'm not sure why Mopar parts since I have never had any issues with NAPA in my past? Didn't see the option when I looked up the part in my local stores.

 

These trucks really don't like aftermarket sensors in critical locations. I used an aftermarket IAC, and it worked, sorta, but, I had random stalling at stops. Put an old mopar unit I had layin' about in, problem went away. Put an aftermarket crank sensor in as well, for a separate problem... it worked, for the most part.... but, at higher RPM's, it would misfire terribly. Mopar sensor, and the problem went away. There are numerous folks on here with similar experiences. Sure, sometimes ya get lucky, but, I am inclined to just do the job once.

 

I'm not disagreeing with you in any way. I looked at a few auto parts stores and didn't see any Mopar choices and NAPA been known to carry better parts so I went with them. I seen them on eBay so I might just order one from there as well to get a Mopar OEM part. I had to take a day off work so I want to have it back up before Monday. I will put it in the morning and see how it does? It's not a fun part to get to so hopefully this goes well till I get the other one, never hurts to have a back up. Thanks for the help and explaining to me about the difference.

 

No, no it's not. I am sure the engineer that designed that particular bit had an axe to grind with some mechanic, and was thinking: "Here, try and change THIS one!"...... I swear, ALL engineers must hate techs..... not sure why, but, it seems every manufacturer has their impossible to get to parts.

 

Also during some research I found where it says it can effect gas millage, idle as well transmission. I just figured the gas millage came with owning a Dodge,lol. I burn about a tank a week back and forth about 8.7 miles one way. Haven't really done the math.
I was saying in some earlier threads that it has a very slight miss idling but very light. Hopefully this will solve some issues as well?.

 

What condition is your battery in(age)? A weak battery can cause similar issues.

 

Battery brand new maybe a month old. Wife had truck since about 21,000 miles and to my knowledge a lot of the sensors were never replaced till I did most of them in the last six months. The last one would the one under the distributor cap. Changing the crank sensor is kicking my butt. Two hours and I got one bolt off so far. So hard to get to these two bolts. It started to rain so I had to take a break. I'm trying both 1/4 and 3/8 sockets wrenches with elbows and the top one so close to the block that it's driving me crazy. lol
From what I have learned here and researching pretty much point a the crank sensor. Either way, once replace, that takes it off the the list.

 

If they are still the original bolts, should have an alan hole in 'em as well. Sometimes easier than trying to get a socket around them.