My 1991 Dodge Dakota has a flat dead spot when you take of from red lights. Where do I start?

batteries seem to die on schedule of 3yrs. r u on ur 2nd?
will it jump start?
if not look for a blown main fuse - AND the cause before replacing.

This sounds like a dead or dying battery. Autozone or other car parts places will hook up an analyzer to determine if the battery can be restored.

If you're going to be deployed again invest in an AGM battery like Optima red top. Make sure its charged and take it out of the vehicle while deployed. Check charge again when you get back hook it up and you'll be good to go.

Thomas

It sounds like the alternator needs to be replaced. To be sure, take the alternator off and take it to a local parts store and they will check it for free. If you replaced the battery, then it just isn't charging. Try the alternator first, and let me know how that works.

You may have a bad engine ground to the frame. Check & clean any ground wire connections. Also there may be a ballast resistor mounted on the firewall &/Or the starter that has cracked. This will only allow the truck to start in dry conditions. Make sure your red starter cable is not frayed & in good condition & clean the connections at the battery & starter. Hope this helps. Good luck!

Assuming the switch is not the problem, check the bundle of wires that come through the firewall next to the brake fluid reserve. I suspect you have a dead short that needs to be fixed

it could be the throttle positioning sensor.

go to this link for diagram. one is white spot on distributor cap.

http://autorepair.about.com/library/firing_orders/bl-fo-9144.htm

did you replace ignition madule? I see you chg. everything else but that. they can be fine when cold, but when they get hot quit working.

It could be a blown fusible link. These are hidden in the wiring on most cars either near the battery connections, or near the starter motor. To find, use a test lamp and start at the battery and work your way along the power wires until you get t a place where there is no power. There is usually a lump or narrow spot in a wire where the link is.