Top 10 1998 Plymouth Grand Voyager Questions & Answers

Here are the steps required to change the water pump on the 3.0L engine.

1. Disconnect the negative battery cable.
2. Drain the cooling system.
3. Remove the drive belts. Remove the timing belt covers and the timing belt.
4. Remove the water pump mounting bolts.
5. Separate the water pump from the water inlet pipe and remove the water pump.
6. Inspect the water pump and replace as necessary.

1. Clean all gasket and O-ring surfaces on the water pump and water pipe inlet tube.
2. Wet a new O-ring with water and install it on the water inlet pipe.
3. Install a new gasket on the water pump.

1. Install the pump inlet opening over the water pipe and press until the pipe is completely inserted into the pump housing.
2. Install the water pump-to-block mounting bolts and tighten to 20 ft. lbs. (27 Nm).
3. Install the timing belt and timing belt covers. Install and adjust the drive belts.
4. Reconnect the negative battery cable. Fill the cooling system to the proper level with a 50/50 mixture of clean, ethylene glycol antifreeze and water.
5. Run the engine and check for leaks. Top off the coolant level, if necessary.

Check under hood in box marked fuses & relay, on drivers side and look under cover of it for I.D.

There has been issues with the solder joints on the PIN connection to the gauge cluster. The issue being that over time thru vibration and such one of these solder joints will fail (happened on or 1999) you can repair this though. You will have to remove all of the trim from around the driver's side dash board, this will include the trim towards the center of the dash. Once these pieces are remove you'll need to remove the gauge panel (I believe (4) allen head screws) carefully bring the panel and release the wire clip from it. Looking at the back of the panel, where the plug was, carefully with plenty of light look for one of the pins to have a failed solder joint. It will be very faint however the failed joint will be a fine dark line around the pin. To correct use a small soldering iron and reheat this solder until it wants to flow, let it cool and reassemble.
As I fore mentioned I had the exact same issue as you are describing, our is a 99. The most tricky part is the dash, take your time with it.
I hope this may have assited you,
Tom

Code p1776 is solenoid switch valve latched in low/reverse position. Valve is located in valve body not solenoid body. The possibilities are:
the low/reverse pressure switch itself is bad
the transmission control relay output circuit is open
the control circuit (sense) of the l/r switch is open, shorted to ground or shorted to voltage.
The control relay's output is on pin #6 of the 8-pin plug of the transmission (red wire); you could verify that the wire has 12V on it when you are idling (and I guess I would put it in gear with the brakes applied). Also examine/shake the wire for intermittent connection possibility.
The solenoid sense circuit connects pin # 8 (light blue) to pin #50 of the transmission control module. You could check that connection and monitor it for voltage to fluctuate between 0V and some measurable V when the trans is shifting normally, and to loose that fluctuation when it is not, which would verify the circuit is OK.
If that proved to be OK, then I would suspect the switch isn't responding and needs to be changed.
The solenoid box is removable after you drop the pan and remove the valve body, and so it would not seem to be an horrendous expense (compared to a rebuild). I haven't done this myself so I can't comment on doing-it-yourself.
I would try to find a competent independent shop that know the Chrysler trans and discuss it with them as to the cost of replacing the l/r pressure switch as the alternative

The code p1784 is about the switch that monitors the hydraulic pressure for operating the low/reverse clutch of the transmission. That clutch is called into play for all forward gears as well as reverse, so it seems reasonable if that clutch were not working that the car wouldn't move in any gear. I would begin by making sure that there is sufficient trans fluid by inspecting its dipstick. If needed only use ATF +4 but don't overfill it. Also, just on a chance, take a look underneath to see if you see any motion of either the left or right half axles (or one moving, but one not) which would be another reason for no motion due to a drive shaft disconnection or some such anomaly. Other than that, your problem could be with the Low/Reverse solenoid switch in the solenoid pack portion of the transmission (the box on the driver's side of the trans) being stuck. That can be repaired without removing and rebuilding the transmission so let us hope that may be the cause. I would have the car towed to a good independent trans shop that has a reputation for knowing how to service the Chrysler electronic transmission.

DTC code p0700 is a transmission control system (mill light) which is related to the other two codes mentioned above.

you can get either a BCM orECM at a salvage yard for $75.00 each,
all you need is to pull each computer down and copy the numbers off of it to give to salvage yard to match up.

Not sure if this is a 98 Plymouth Grand Voyager or a 2001 Grand Caravan, but in either case:
The Body Control Module (BCM) is located under the Dash on the left side, behind the parking brake, mounted on the fire wall, to the left of the steering column. It is attached to / underneath the Junction Box. The BCM is the silver metal box attached to the black portion which is the Junction Box.
Let me know if this helped, or if you have additional questions or information. Feel free to contact me at FixYa.com!

the main fuse box is usually under the hood,you may find a small fuse box under the dash as well.....hope this helps.....cheers

check all your fuses

Hi there:
Check item "6"...

HERE the link.

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IT WORKS LIKE A LOOP YOUR HEATER CORE ACTS LIKE A U-TURN SO IF GET A U-SHAPE PIPE AND CUT THE HOSE TO FIT IT WILL SOLVE YOUR PROBLEM