OBD 1789?

Asked by Apr 03, 2015 at 12:58 PM about the 1989 Dodge Grand Caravan 3 Dr SE Passenger Van Extended

Question type: Maintenance & Repair

I was given a 1989 Doge Grand Caravan for my daughter. When I went to pick up the van, I noticed that the previous owner had a flat pan under the van. It seems that transmission oil was coming out of the bottom of the transmission. I took it for a drive and noticed that the transmission was having shifting problems. Two days later the check engine light came on. I checked it with my obd reader and I got a fault code P1789. I would appreciate and honest and intelligent opinion on what could be causing this problems. Furthermore, I noticed that the transmission dip stick showed that transmission oil is needed. I put some transmission oil and I still experienced the shifting problems. It delays to shift to drive or reverse. I am afraid to take it to a shop because most of these shops want to brake your arms and legs and poke your eyes as charge is concern. It might be a simple job that may require to replace a sensor or cleaning issue. The shop may suggest that the transmission needs to be overhauled. I had bad experiences with several mechanic shops in the past. The honest shops are hard to find.

1 Answer

254,415

P1789 is a transmission code. "Pressure control solenoid B Short circuit"It also might be leaking there as well or it might be the pan gasket or both. Here is a video on another car to see what is involved in replacing the solenoid if in fact that is the problem....https://www.youtube.com/watch? v=RSGOV4ZgKfg.....I suspect you were given the van for free because it will require some repairs and money to keep it on the road. Keep the trans fluid at the proper level until you have it repaired. Find a decent mechanic or trans shop in your area to perform the fix. Talk to friends and family to find one. Online is good for that too.

1 of 1 people found this helpful.

Your Answer

Dodge Grand Caravan Experts

  • #1
    Tom Demyan
    Reputation
    2,720
  • #2
    dandyoun
    Reputation
    890
  • #3
    Dan Connell
    Reputation
    610
View All

Related Models For Sale

Used Chrysler Town & Country
242 Great Deals out of 14,147 listings starting at $1,998
Used Dodge Caravan
599 listings
Used Ford F-150
2,317 Great Deals out of 183,061 listings starting at $1,000
Used Toyota Camry
1,043 Great Deals out of 72,497 listings starting at $295

Used Cars For Sale

2017 Dodge Grand Caravan For Sale
61 Great Deals out of 11,887 listings starting at $16,900
2016 Dodge Grand Caravan For Sale
7 Great Deals out of 4,656 listings starting at $10,000
2015 Dodge Grand Caravan For Sale
8 Great Deals out of 1,270 listings starting at $8,800
2014 Dodge Grand Caravan For Sale
13 Great Deals out of 1,719 listings starting at $4,350
2013 Dodge Grand Caravan For Sale
23 Great Deals out of 1,385 listings starting at $3,999

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.