01 t&c cranks no run
 

This one wont be easy 01 t&c 3.8 quit and no start dealer replaced pcm we have current info if i pay i want some good help because im good and can gather more info as needed. I dont have enough tech info to affect repair

and u dont have enough info posted for any one to give any ideas of whats wrong.

ok here is what i have. 2002 town & country, 3.8. died while going down road. no spark...dealer had it a year never got it going. they installed a reman pcm and crank sensor. now i have inspected all related wiring, no chafing or obvious breaks. in another forum it recomended probing the ign coil lead for battery voltage at key on there was voltage, next it said to crank eng there should be voltage during crank. no voltage. asd relay swapped with like relay still no spark. replaced cam sensor, no spark. only codes in pcm are coolant temp sensor and mat sensor. i can provide more when given instructions on test
ty
Mod

a dealer had it for a year??? what was that crap?
ok U have voltage at the coil did u have ground pulses when cranking on the other 3 wires?

i had voltage at key on for a few seconds but on crank voltage was gone so i didnt go to that step ... tried energizing asd relay to c if that would start eng didnt

most modern so called techs are just part changers i have to do some hard diagnosis on this one... not a prob Kevin... been there before as a Cad tech so help me out on this one

I did i asked u if there was a GROUND PULSE on the other wires at the coil when cranking. Not voltage but ground. The voltage comes from the asd relay then turns off when not trying to crank the engine.

what method should i use for that test ? test light on b+ and probe for pulse or meter

test light on b+ would be better

no pulse w/light . i called your number left message

Then u have a computer issue or a wire issue cam or crank sensor. Issue. I don't take personal calls sorry I can't open that door I already get calls and emails from all over the world

Are you getting communication with the PCM at all? I guessing some dingaling at the dealer just saw that and threw a PCM at it.

yes i have a data stream from the pcm

What does your cam/crank sync look like? Give it about 15 secs of cranking see if you see one of them drop out. I want to be clear on something first...is the new PCM they put in still in the car?

yes the replacement pcm is the one in the vehicle now. my scanner only shows rpm and it stays at 0 during crank

my books here bypass the 01/02 yr mods and dont show where the crank sensor is can u let me know the loc of that sensor

driver side where the trans and engine meet

there are two paramaters out of range to go with the codes stored
tps reads 100% and unplugged it still is @ 94
cts reads -40 @59f outside

Sure looks like you have 5V reference circuit issue. What the exact problem with it is, there is no way I can tell you from here. Lots of meter probing.

i know it would take time and alot of effort for anyone to help me with this veh. wish i was able to find a pay for tech support that was credible so i had the info make this veh run again because i know i can

well i had this thing on the run today .... had another like veh tried the pcm and the data went to normal tried to start and the veh started a few times then a no crank situation .... so i do have some leads..... thanks yall for your assistance and im still here if there is more you can offer
Mark
Starservices LLC