I have a 1991 dodge caravan/3 liter v6 engine.I have replaced the alternator and the battery but after about 24 hours its dead again.how do I fix this?

Location of map sensor 98 grand caravan 3.0

Try these links;

Spark plug wire firing order for 2003 dodge grand caravan Google Search

dodge grand caravan 3 3l engine

3 3 liter V6 Chrysler firing order Ricks Free Auto Repair Advice Ricks...

It could have overheated. run out of gas. stayed locked in high gear and stalled as it stopped. You did'nt say if it would restart? You did'nt say what engine? It can have a 2.4 liter 4 cyclinder a 3.0 liter V6, A 3.3 liter V6, or a 3.8 liter V6. It can have a 4 or 5 speed automatic transmission and the 4 cyclinder can have a manual transmission as well. It can be air condidtioned and problems with it can stall the motor. the battery can be low or dead and thiers not enough power to run the brake lights and the fuel pump both so the engine shuts down. It might restart if you turn off everthing and certainly the defroster and anything that uses electrical power.

there is a rheostat for controlling the fan speed it sounds like that could be causing the burning smell?

For the 2001 Dodge Caravan (and Grand Caravan) all 3.3L V6 Engines (including the Flex Fuel):

Firing Order:
1-2-3-4-5-6

Cylinders:
........(back).......
|...1....3....5...|
______________
|...2....4....6...|

Ignition Coil:
.......(back)
.....connection
...........|
..........V
5........1........3
2........4........6
.......(front)

Let me know if this helped, or if you have additional information or questions. Feel Free to contact me at FixYa.com!

use a volt meter and check the voltage with the engine off. should be 12 volts then check again with engine running it should be 13 to 15 volts if no then the pcm is at fault. the voltage regulator is inside the computer control and you will need to have it checked out at a dealership. if bad will have to replace the computer on van to correct the charging system. hope this will help!!!

3.3 & 3.8 same block. V6 no special tools needed

It is activated by a temperature switch. It's probably bad. Just runs the fan at any time for no reason or there is a short in that part of the system. I hate that the computor was changed first. Find that sensor and swap it out and see if your problem doesn't go bye bye.

Good luck

sounds like the alternator has stopped charging or has bad connection at battery

check the ground cable all the way from the battery to engine im betting its loose or not getting a good connection somewhere