Cranshaft position sensor

hello, when you turn the key does the engine crank over?

it tries to crank but never engages and actually starts

when you turn the key to start does the check engine light come on?

Also I noticed when I turn the key prior to trying to start it none of the pumps engageIn addition the odometer no longer shows numbers but rather NOBUS and my gas gauge says I have no fuel but I do

when you turn the key to start does the check engine light come on? ok-- we have a broken corroded dat bus wire -- now the fun begins looking for it

I'm ready!

what size engine? 3.9 or 4.7? or last 8 digits of the vin #

Customer attachment 3/5/2021 6:37:07 PM

I think it's a 4.7I'm a young single mom trying to fix on my own so any education you can provide would be greatly appreciated! Spent hours reading trouble shooting manual and online forums

ok --- most of the time i see the issue in the left kick panel area00 meaning when you sit in the truck where your left foot is -- so lets remove sill plate and kick panel -- you will see a wire harness there -- open harness up and if you see any wiring splices open them up -- keep an eye out for a light green corrosion let me know what you fine harness and splices will be wrapped in black tape-- so you will need electrical tape to put it back together

Uh oh....truck is at my work and I'm at home.I guess I was hoping to find out if I needed to purchase a crankshaft position sensor or camshaft position sensor and ask what tools I would need to buy to do the replacement.But now I realize at the crankshaft or camshaft isn't my issue.

do not buy any parts yet, a sensor will not bring down the data bus -- we have a broken or corroided wire-- problem being is where do you live in a state that uses road salt?

No sir. I live in central Florida

truck has been down there its entire life?

As far as I know

or near the ocean, or has truck ever been flooded with water inside the cab?

It's definitely beem near the ocean and driven/waded through deep puddles back in 2017 after Hurrican Irma but never flooded to my knowledgeCould it be the TPS??

so this is what can bring down the data bus-- any one of the computer modules, the instrument cluster, a broken data bus wire or a broken ground wire based on what i have seen over the last 3-+ years is wiring issues -- most common area would be left kick panel /floor area== i would start there there is going to be a bit of luck involved in finding this -- after you remove sill plate -- just look around at harness any corrosion will look like a lite green powder-- plus before you take harness apart - grab with your hand and wiggle it around(pull on it) and see if bus comes back up -- this would tell you if you are in the right area as well if wire is not completely broken it is NOT a sensor -- a sensor will not bring down the data bus

Understood. Thank you sooooo much!

30+ years -- sorry -- i still cant type lol! good luck and if you have any further questions, please let me know, Tim thanks!!

Is there any way I could speak directly to you again when I get back to my truck in a couple hours???

just post back to here

Here...meaning this text message thread correct?

yes, that is correct

Thank you!

no worries