The 2004-2009 Durango (the HB body, shared with the 2007-2009 Chrysler Aspen) is a heavy, body-on-frame SUV that a lot of owners bought to tow. Behind the 4.7L and the 5.7L Hemi it carries the 545RFE, the same five-speed you find in the Ram 1500 of the same era. So most of what goes wrong is familiar RFE territory: switch valve wear in the valve body, burnt overdrive clutches, limp mode with a P0882, and service mistakes. The Durango adds a couple of its own wrinkles, starting with a delayed-engagement bulletin that still catches people out, and two recalls that can make a driveline problem look like a transmission problem.
Here is the list in the order we chase it, with the factory specs and the tests that separate one fault from another. For the chassis-neutral version, see our 45RFE and 545RFE problems write-up.
First: Make Sure It Is Actually a 545RFE
Do not order parts off the model year alone. Durangos of this generation came with more than one automatic. Chrysler's bulletin on RFE delayed engagement identifies the two RFE units by sales code: DGQ is the 545RFE and DG4 is the 45RFE (ALLDATA / Underhood Service). Read the sales code sticker or the build sheet before you buy a solenoid pack or a valve body.
The V6 trucks are a different animal. NHTSA recall 05V-460, which covered an improperly installed park pawl anchor shaft cup plug on vehicles with the 42RLE four-speed, includes 2005 and 2006 Durangos in its population (NHTSA recall data). A 3.7L V6 Durango does not take 545RFE parts; everything below is for the V8 trucks.
Problem 1: Slow Engagement After Sitting Overnight
This is the Durango complaint that sends people to a transmission shop when nothing is broken. The truck sits overnight, the driver starts it and pulls it into Reverse or Drive, and it takes a second or two to engage. After that it drives fine all day.
Chrysler wrote a bulletin on exactly this for 45RFE and 545RFE vehicles, and the 2004-2006 HB Durango is on its application list along with the Ram, Dakota, Grand Cherokee, Liberty and Commander. The cause is the spin-on cooler return filter. Per the bulletin, filters with part number 04799662AB can let fluid drain back out of the torque converter while the engine is off. With a partly empty converter, engagement is delayed at start-up until the pump refills it. Chrysler says the condition is not detrimental to the transmission, and it often first appears right after a service that replaced that filter.
The fix is a cooler return filter under part number 04799662 with no suffix, or any suffix other than AB. Some replacements come with a separate threaded adapter stud. The bulletin procedure torques the stud into the filter at 165 in-lb (18.6 N-m) and the assembled filter to the case at 125 in-lb (14.1 N-m). Later Chrysler service information for the 545RFE lists the cooler return filter at 84 in-lb, so use the value that matches the filter and stud you actually have in hand.
How to tell it from a real problem: the bulletin condition happens only on the first engagement after a long sit. If the delay is there every time you shift into gear, hot or cold, or the truck gets slower to engage week by week, you are looking at fluid supply, not drain-back: low level, a cracked primary filter or seal, a sticking main regulator valve, or a tired pump. Those are the same items on Chrysler's P0944 (loss of hydraulic pump prime) cause list covered below.
Problem 2: Wrong Fluid, Wrong Level, Skipped Filter
The 545RFE is a fully electronic, adaptive, clutch-to-clutch unit, and it is fussy about fluid. Chrysler specifies Mopar ATF+4, says Dexron II is not recommended, and warns that the wrong fluid can cause clutch chatter. Do not add friction modifiers or sealers.
Level matters just as much as type. Chrysler's fluid level procedure for the 545RFE:
- Vehicle level, selector in Park, engine idling for at least one minute.
- At normal operating temperature, about 180 F (82 C), fluid should read in the HOT cross-hatched area. At about 70 F it should sit near the upper COLD hole.
- Read transmission temperature on a scan tool. Chrysler notes the true oil temperature can only be read in Reverse or a forward gear, so drop it into gear briefly to read it, then return to Park to check the stick.
- After adding fluid, wait at least two minutes for it to drain down the fill tube before rechecking.
Per the service information, low fluid lets the pump suck air and overfill whips the fluid into foam; either way pressure builds slowly and runs low, and foam can push out of the vent and look like a leak.
When you do the service, the factory torques are 105 in-lb for the pan bolts and 40 in-lb for the primary filter screw, plus the cooler return filter value discussed above. Chrysler's Schedule B calls for a drain and refill with a new sump filter at 60,000 miles and adds the cooler return filter at 120,000. For the same transmission in a Ram, Chrysler's capacity chart lists a service fill of 5.2 L (11 pints) on 4x2 and 6.2 L (13 pints) on 4x4, so plan on six to seven quarts for a pan drop and finish on the dipstick hot. Our 545RFE filter and pan service guide walks through both filters.
Problem 3: Solenoid Switch Valve Wear (P0841, P0868, P0871)
This is the classic RFE valve body failure, and high-mileage Durangos have it as often as the trucks do. Sonnax describes the switch valve's main job as directing oil between the low/reverse clutch and the torque converter clutch. It also feeds the 2nd and overdrive clutches through two shuttle plugs at the end of the bore. As the bore wears, oil cross-leaks between circuits that are supposed to be isolated.
Sonnax lists the results as bind-up, codes 841, 868 and 871 (plus the latched-valve codes 1775 and 1776), engine stall, failsafe, no lockup, and converter apply and release complaints (Sonnax, "All in the Family"). A Durango that dies when it rolls to a stop, or that binds up on the 2-3 or 3-4 with a P0871 stored, puts the switch valve bore at the top of the list.
Measure before you buy reamer tooling. Per Sonnax, the 45RFE family (45RFE, 545RFE, 68RFE) originally used a 0.420 in. large spool with 0.453 in. outer plugs, and a 0.453 in. spool came in around the 2010 model year. A 2004-2009 Durango should have the original 0.420 in. valve, but valve bodies get swapped, so measure the valve itself. Sonnax recommends vacuum testing the bore rather than judging it by eye. Without vacuum test gear, a tested reman valve body is the fastest fix.
Problem 4: Burnt Overdrive Clutches and the Comeback
A heavy SUV pulling a camper in fourth and fifth is hard on the overdrive clutch, and burnt OD frictions are the hard-parts failure we see most on these units. Replacing only the clutches is how you get a comeback.
Caleb Perham of the Sonnax TASC Force, writing in Transmission Digest, breaks the problem into three areas (Transmission Digest):
- The switch valve bore plug. It strokes on the 2-3 and strokes back on the 3-4 to feed the overdrive clutch. It moves on every shift, which is why that bore wears.
- The overdrive dribbler valve in the stator. It is a controlled leak that pre-charges the OD circuit. Restricted, the clutch applies late. Leaking too much, the clutch stays slightly applied and drags. Air test it: air should pass from the pump side to the drum and not back.
- Clutch clearance. Too tight shortens fill time and causes bind-up. Too loose lengthens fill time and lets the clutch drag and overheat.
Chrysler's spec for the overdrive pack is 0.043-0.073 in. (1.103-1.856 mm), and the underdrive pack is 0.033-0.061 in. (0.84-1.54 mm). Aim for the middle of the range, not the loose end. After the repair, run Quick Learn and watch the clutch volume index (CVI) numbers settle over a few drive cycles. A CVI that keeps climbing points to a leak in that clutch's circuit. If the truck tows, keep the cooler clean and the level right; our 545RFE overheating prevention guide covers cooler flow.
Problem 5: Limp Mode, P0882 and the Solenoid Pack
When the controller sees a fault it cannot live with, it cuts power to the solenoids and the valve body falls back to hydraulics. Chrysler's operation description says the hydraulic system alone still provides Park, Reverse, Neutral, Second and Third based on where the driver puts the lever. That is why a Durango in limp mode pulls away in second or third and will not shift.
P0882 (TCM power input low) is a common trigger and a common misdiagnosis. Jarad Warren's case study in ATRA's GEARS magazine traces the circuit: the PCM signals the TIPM, the TIPM closes a relay, and power returns to the PCM, which then feeds the solenoid pack through pin 10. Less than 3 volts at the PCM sets the code. Besides the PCM, TIPM and wiring, a shorted solenoid pack can pull the voltage down too. His values, measured from pin 10: about 1.8 ohms for each shift solenoid and the LR/TCC solenoid, and about 3.7 ohms for the line pressure control solenoid (GEARS, "An Uncommon Fix for Code P0882"). With the code setting key-on, engine-off, plug a known-good spare pack into the harness outside the case, clear and cycle the key; if it stays gone, replace the pack.
Get the right pack. Sonnax's solenoid identification work shows the 2000-2009 packs use a white connector and six solenoids, and the 2010-up gray five-solenoid pack cannot back-service the earlier units (Sonnax). Every 2004-2009 Durango 545RFE takes the white six-solenoid pack.
Problem 6: It Is Not Always the Transmission
Two federal recalls on these Durangos can produce a complaint that sounds like the transmission. Check both by VIN before you quote a rebuild.
- 2007 Durango, recall 06V-341. PCM software could cause a momentary lock-up of the drive wheels if the vehicle was over 40 mph and the driver shifted from Drive to Neutral and back to Drive. The remedy was a free PCM reprogram (DaimlerChrysler recall F43). Only 2,333 units across several 2007 models were affected (NHTSA 06V-341).
- 2009 Durango and Aspen, recall 13V-038. Trucks built January 3 through December 18, 2008 can have a rear axle pinion nut that loosens because of an undersized pinion spline. NHTSA's consequence statement is that the axle can lock up (NHTSA recall data, 2009 Durango). A clunk or a truck that suddenly will not roll should send you under the rear axle first.
If it will not move at all, read output speed on the scan tool in Drive with the wheels up; output rising with no wheel movement clears the 545RFE. Our 545RFE no movement diagnosis has the full flow. If the no-move started right after a service, work Chrysler's P0944 cause list in order: shift lever adjustment, fluid level, a cracked or improperly installed primary filter or seal, a loose cooler return filter, a sticking main regulator valve, then the pump.
For fluid specs on the rest of the vehicles in your shop, keep our transmission fluid spec chart handy.
545RFE solenoid packs, valve bodies, master rebuild kits and filters for the 2004-2009 Durango — shipped fast from the USA.
Shop 545RFE parts →Shop the part for this fix
If the codes and the pin 10 resistance checks point at the solenoid pack, the 1999-up RFE shift solenoid kit covers the white-connector, six-solenoid pack used in every 2004-2009 Durango 545RFE.
Shop the RFE solenoid kit → All RFE-series partsFAQ
What are the most common 545RFE problems on a Dodge Durango?
On 2004-2009 V8 Durangos the usual list is a delayed first engagement after sitting overnight, fluid type and level mistakes, solenoid switch valve bore wear in the valve body, burnt overdrive clutches, and limp mode from a P0882 or a failed solenoid pack. Check the 2007 and 2009 recalls too, since they can mimic a transmission fault.
Why does my Durango take a few seconds to go into gear in the morning?
Chrysler's bulletin for 45RFE and 545RFE vehicles, including the 2004-2006 Durango, blames cooler return filters with part number 04799662AB, which can let fluid drain out of the converter overnight. Replacing it with a 04799662 filter that is not AB-level corrects it. If the delay happens on every shift, hot or cold, look at fluid level, the primary filter seal and the pump instead.
What transmission fluid does a 545RFE Durango use?
Mopar ATF+4 or a licensed ATF+4 equivalent. Chrysler says Dexron II is not recommended and that the wrong fluid can cause clutch chatter. Check the level in Park at about 180 F, in the HOT area of the dipstick.
Does every 2004-2009 Durango have a 545RFE?
No. The 545RFE is sales code DGQ and sits behind the 4.7L and 5.7L V8s. 3.7L V6 Durangos use the 42RLE four-speed, so confirm the sales code before ordering parts.
Why is my Durango stuck in second gear?
That is almost always limp mode. When the controller cuts solenoid power, the 545RFE valve body still gives Park, Reverse, Neutral, second and third hydraulically. Pull the codes; P0882 points at the transmission power feed, the TIPM, the PCM or a shorted solenoid pack.
Related 545RFE guides
Sources
- Chrysler 545RFE service information (2007 XK) and 2008 Ram fluid capacities. Backs the hydraulic limp-in ranges (P, R, N, second, third), ATF+4 as the recommended fluid with Dexron II not recommended, the Park / one-minute idle / 180 F HOT level procedure and the effects of low and high level, the 105 in-lb pan, 40 in-lb primary filter and 84 in-lb cooler return filter torques, OD and UD clutch clearances, the Schedule B 60,000 and 120,000-mile services, the P0944 cause list, and the 5.2 L / 6.2 L service fill. operation, specifications, ATF, fluid level check, maintenance schedules, P0944, 2008 Ram capacities (PDF)
- Chrysler service bulletin, 45RFE/545RFE delayed engagement (ALLDATA, via Underhood Service). Backs the DGQ/DG4 sales codes, the 2004-2006 HB Durango application, the 04799662AB cooler return filter drain-back cause, the not-detrimental statement, and the 165 in-lb stud and 125 in-lb filter torques. underhoodservice.com
- NHTSA recall records 06V-341, 13V-038 and 05V-460. Backs the 2007 Durango PCM reprogram for momentary drive wheel lock-up on a D-N-D shift over 40 mph (2,333 units, recall F43), the 2009 Durango and Aspen rear axle pinion nut recall and build dates, and the 42RLE recall population that includes 2005-2006 Durangos. 06V-341 (PDF), 2009 Durango recalls, 2006 Durango recalls
- Sonnax — "All in the Family: Identification and Repair of Chrysler Solenoid Switch Valve Problems" and "Identifying Chrysler RFE Solenoid Changes Through the Years." Backs the switch valve function and shuttle plugs, the code and symptom list, vacuum testing, the 0.420 in. vs 0.453 in. spool change around 2010, and the white six-solenoid (2000-2009) vs gray five-solenoid pack change. switch valve article, solenoid changes article
- Transmission Digest — "Troubleshooting RFE Overdrive Clutch Failure: Three Key Areas," Caleb Perham (Sonnax TASC Force). Backs the switch valve bore plug stroke on the 2-3 and 3-4, the stator OD dribbler valve and its air test, and the effect of clutch clearance on fill time. transmissiondigest.com
- ATRA GEARS Magazine — "An Uncommon Fix for Code P0882," Jarad Warren. Backs the P0882 power path through the TIPM and PCM pin 10, the 3-volt threshold, the shorted-pack cause, the 1.8 and 3.7 ohm values, and the spare-pack test. gearsmagazine.com