20 Most Recent 1987 Dodge Ram Wagon B250 - Page 4 Questions & Answers

Usually, they are connected to the positive battery cable, or the starter.

check to make sure distributor electrical wires been reconnected to distributor.and check to make sure distributor is receiving 8 volts supply from the pcm.check see if orange wire going to distributor to pcm getting power. because spark plugs not firing could be pcm, coil itself bad or crankshaft sensor bad. i would code scan vechicle before buying new parts ignition.timing off if you did not have distributor in number 1 firing position before removing the timing chain.

code 21 is for the oxygen sensor. This controls the mixture of the fuel going into the engine. the sensor may be bad or its connector may be dirty or faulty.

Check for proper engine ground and ground to chassis for dirty or loose connections.

Check these items if problem persists after O2 sensor repair.

MAP
fuel pressure regulator

It could be a fuse or relay.. Find the location of them in your maual..

Dodge had a problem with he distributor bushing wearing out allowing the distributor shaft to wobble.
I have replaced several distributors in dodges for that reason.
If you hold pressure on one side on cap and it runs fine and quits when you release distributor cap the distributor will need to be replaced.

the only switch that you need to remove is the signal switch and hazard button that are held with screws.the hazard button has a screw(in the button)that holds the button to the side of the switch and the signal switch is held by 3 screws that you should see looking down at the switch.the one screw you will have to turn the switch to either left or right signal to gain access to it.disconnect the switch connection under the dash so you can pull up the switch to gain more access to the system.you will have to remove the ignition switch,with the key in there should be a small hole in the housing that you push a small pick or pin or drill into to push up the lock tab to remove the ignition switch.then you can continue.

go to his web sight and down load the diagram book and then look up your make and model.


http://www.doocu.com/pdf/search/gates+auto+belt+routing

Normally, when the dash lights are out, so too are the tail lights. Check your tail light fuse.

It would be very unusual for all of the lights to go out at one time. If in fact, this is what happened, you should be able to reach up behind the instruments and remove the lights one at a time.

Thanks for your question @ FixYa.com

More than likely it's a leaking heater core (common for that age) and yes no pressure (leak) in cooling system = no heat. It's possible hose but heater cores are notorious failures.

The newness of your van is starting to wear off. The headlight switch has probably seen about as many off-on cycles as it was designed for. Time for a new switch.

i would check wires leading to tank sounds like you have a bad connection or possiably a bad ground wire if connection s look good and your getting good ground more than likely you have a bad sending unit in the tank

Hi!!

• Code 12 just means that the battery input to PCM has been disconnected within the past 50 Key On cycles. After the 50th. Key On cycle, the code would go away.
• Code 17 means that the thermostat is probably stuck open because the coolant temperature remains too low during vehicle travel. A defective temp. sensor could also send the wrong information to the PCM, which in turn makes the air/fuel mixture too rich and makes the vehicle stall.

Besides checking the two items above, also inspect the following:

• Fuel Pump output pressure, the pressure with the Key On, engine OFF should be 53 - 57 psi. If pressure is below range, replace fuel filter and test again. If pressure still low, squeeze shut return hose while someone turns the ignition key to the ON position, if pressure increases, replace fuel pressure regulator. If pressure still not within range, replace Fuel Pump.
• Vacuum hoses for cracks, disconnected or broken lines.
• Sticking EGR Valve

Replace Air Filter and PCV valve. These are regular maintenance items and should be replaced periodically.
Good luck!! Keep me posted.