4F50N TRANSAXLE NO 1-2 UPSHIFT AND DIAGNOSITC TROUBLE CODE P0732.
full bulletin at NHTSA ↗2005 Mercury Monterey powertrain problems
moderate 96 complaints filed with NHTSA · avg repair $2,500 · see powertrain across all vehicles →
Failure mileage
Complaints
96
Recalls
0
Avg fix
$2,500
When does it fail?
Of the 96 powertrain complaints filed for the 2005 Mercury Monterey, here's the actual mileage breakdown — failures cluster heaviest at 50,000-75,000 mi.
0-25k
25-50k
50-75k
75-100k
100-125k
125-150k
150k+
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.
How fast does it fail?
Cumulative share of the 17 mileage-bearing powertrain complaints filed against the 2005 Mercury Monterey by each odometer reading. Median failure: 56,000 mi.
10% have failed by35,000 mi
Half the fleet by56,000 mi
90% have failed by83,000 mi
Curve based on owner-reported odometer mileage at the time of complaint. Reflects when owners filed, not when symptoms first appeared. Maintenance habits and driving conditions shift the curve.
What stands out
Powertrain accounts for 81% of every owner complaint on file for this vehicle — the dominant problem area across 4 categories tracked.
Owners have filed 96 powertrain complaints with NHTSA against this vehicle, but no formal recall covers the issue — the federal record reflects what manufacturers have admitted, not everything owners are reporting.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering powertrain on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
The failure pattern owners describe
Owners describe sudden, violent transmission failures—engine running fine, then zero power mid-traffic with no warning lights. Most common failure: torque converter output shaft splines strip around 45K–70K miles, leaving the van dead in traffic or on highway. Complaints cluster in 2008–2010 timeframe, with owners who thought they were past trouble reporting second transmission failures 2014–2016, years after the 2012 recall replaced the converter.
Water intrusion into the PCM (powertrain control module) is a separate design flaw; Ford issued TSB 06-14-10 admitting it affects nearly one million 1999–2007 vans. Vehicle enters limp mode, loses reverse, or stalls in rain. Despite this documented defect spanning nine model years, it was never recalled.
Recall 11S25 (announced 2012 for worn torque converter shaft) promised parts in Q2 2012 but delivery slipped to August–September 2012 or later, leaving owners stranded. Dealers provided conflicting information—one said the recall wasn't performed, then two days later claimed it was completed in 2012. One owner paid $1,829.60 in February 2009 for transmission work, then was denied reimbursement because the parts shortage delayed the recall service. Owners of vehicles receiving torque converter recall repair later reported transmission failure at 70K–145K miles; Ford refused coverage, stating the vehicle was out of warranty despite acknowledging the original converter caused internal damage.
Safety incidents pervade the complaints: loss of power at 70 mph, on bridges, in intersections, with children aboard. Multiple owners report nearly being rear-ended or T-boned. Police had to push vans to safety. Repair costs exceed $3,000 in some cases.
Same Mercury Monterey powertrain reports on nearby years: 2006
Failure modes owners describe
Torque Converter Failure – Loss of Power/Drive Disengagement
Output shaft splines strip or wear, causing sudden complete loss of drive capability. Engine continues to run but vehicle will not move forward or reverse. Occurs with zero warning and no warning lights in many cases. Strikes at 40–110K miles, with clustering around 45–70K. Owners report coasting to a stop mid-traffic, including highway speeds.
When: 40K–110K miles, majority at 45K–70K miles
Symptoms owners cite: Complete loss of forward and/or reverse motion; Engine running normally but no drive engagement; RPMs spike while vehicle won't move; No advance warning; sudden failure; Sometimes transaxle warning light illuminates after failure
Repairs/costs cited: Torque converter replacement $1,000–$1,786; full transmission rebuild $1,800–$3,800 in later failures
Recalls/TSBs owners mention: Recall 11S25 / NHTSA 12V-006 for worn spline in transmission torque converter; parts availability severely delayed (promised 2Q 2012, delivered August–September 2012 or later). Some dealers claim recall already performed when it was not in system. Owners who reported transmission issues during warranty period denied coverage after torque converter replacement failed to prevent secondary transmission damage.
PCM (Powertrain Control Module) Water Intrusion
Water drips onto PCM due to design flaw in cowl area, causing shorts and module failure. Vehicle enters limp mode, loses reverse, loses drive, or stalls. Owners report rain as trigger. Ford TSB 06-14-10 identifies this as known defect affecting all 1999–2007 Ford vans; affects nearly one million vehicles but not subject to recall.
When: Can occur at any mileage; one complaint at 17K miles, another in rain conditions
Symptoms owners cite: Vehicle stalls or loses power while driving; Goes into neutral unexpectedly; Loss of reverse capability; Limp mode – limited to 3rd gear or single gear only; Check engine light with flashing indicator; Occurs during rain
Repairs/costs cited: PCM resealing or replacement; one owner paid dealer to fix (~$800 estimate mentioned); dealer costs vary
Recalls/TSBs owners mention: TSB 06-14-10 issued; Ford declined to recall despite known defect spanning 9 model years (1999–2007). Owners had to pay for repair. One owner referenced recent torque converter and rear-seat rust recalls, questioning why PCM water intrusion was not recalled given safety implications.
Transmission Failure – Secondary to Torque Converter Recall Repair
After torque converter replacement under recall (2012), transmission fails again at 70K–145K miles. Recalls replaced torque converter but damage already done to transmission internals. Owners report full transmission rebuild required, copper shavings found in pan magnet, piston/servo/band damage.
When: 70K–145K miles, typically 2–4 years after recall repair (2012 repair, 2014–2016 second failure)
Symptoms owners cite: Loss of power while driving; Cannot accelerate over 30 MPH; RPMs jump erratically; Transaxle warning light on; Hard shifting or stuttering before failure
Codes mentioned: Transaxle fault codes referenced but specific codes not provided in narratives
Repairs/costs cited: Master OH kit, band, piston, servo, torque converter replacement = $1,814; transmission rebuilds $1,800–$3,000+
Recalls/TSBs owners mention: Ford told owners recall had already been performed and would not cover secondary failure, despite manufacturer acknowledging the original torque converter caused internal damage. Owners denied reimbursement claims, told vehicle was out of warranty for second failure.
Transmission Limp Mode / Reduced Power / Hard Shifting
Vehicle enters limp mode with reduced acceleration capability, stuttering, hard shifts, or jerking between gears. Copper shavings found in transmission pan indicating internal wear. Occurs during normal driving or after stopping at lights.
When: 40K–105K miles
Symptoms owners cite: Loss of power / stuttering at 40–50 MPH or after stops; Can only accelerate in single gear or 3rd gear only; Hard shifts and jerking; Inability to reach highway speeds; Hesitation and surging; Engine cuts off then restarts while driving
Codes mentioned: No codes in some cases; one complaint mentions #6 plug misfiring 16% of time (disputed by independent mechanic)
Repairs/costs cited: Transmission rebuild or replacement $1,800–$3,000+; one independent mechanic found copper shavings in pan
Recalls/TSBs owners mention: One owner reported dealership initially blamed #6 spark plug misfire despite no check engine light, contradicting independent mechanic. Dealership eventually confirmed transmission problem. Ford did not offer coverage; owners told vehicle out of warranty.
Recall Implementation Delays and Documentation Issues
Recall 11S25 (12V-006) announced but parts unavailable for 6+ months, causing owners to undergo emergency repairs at private shops before recall parts arrived. One owner's earlier repair (Feb 2009, $1,829.60 for torque converter + transmission work) was not reimbursed because vehicle had not yet been serviced under the delayed recall. Dealers provided conflicting information about whether recall had been performed on same VIN.
When: 2012 recall notification through 2012–2013
Symptoms owners cite: Owner possesses pre-recall repair receipts but denied reimbursement pending recall completion; VIN recall status inconsistent across dealer systems (one dealership says not performed, another two days later says it was performed in 2012)
Repairs/costs cited: One owner paid $1,829.60 in Feb 2009, denied reimbursement in 2012; recall parts promised 2Q 2012, arrived August–September 2012 or later
Recalls/TSBs owners mention: Recall 11S25 / NHTSA 12V-006; severe parts shortage caused 3–4 month delays. Dealer told owner he could not submit pre-recall bill for reimbursement until vehicle underwent recall service. Conflicting dealer documentation on recall completion status.
Synthesized from 96 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 19 most recent
Driving on i35 at 75 miles per hour with the cruise control engaged. I had been driving for approximately 2 hours. The car engine just started racing with no warning, I took the cruise off and had lost all ability to move forward or reverse. I had the entire family in the car. I am 800 miles from home and it will be 2 days for the fix. They estimate approximately $1800. The van is less than…
My wife was backing out of a parking space at her job. She then put the vehicle in gear and it would not move. The transmission quit working without warning. There were no warning lights or any sign of a problem prior to the incident. Vehicle had to be towed to dealership. *tr
Tl*the contact owns a 2005 mercury monterey. The contact stated that while driving approximately 45 MPH, the rpms went higher than normal. She was able to get the vehicle to the side of the road but could not steer or move after that. The vehicle was towed to an independent mechanic who informed her that she needed to replace the transmission. The vehicle had not been repaired. The failure…
Took the kids to the movies and drove around town for a good part of the day. About an hour after getting home I had to go to the store I got into the van and started the engine the RPM's went up to about 4k. I backed out of the driveway and put the van into drive. The RPM's went up again to about 4k again. After driving for about 20 feet the van lost power, then engine was still on but the…
Re: 2005 mercury monterey transmission. As noted in other posts, my wife was traveling to work at 6:15 in the morning (dark), heard a strange sound and immediately the cars systems all stopped and she struggled to get it to the side of the road. Aaa towed the car to a well known a reputable repair service and they were able to very quickly diagnose a complete transmission failure. Estimated…
Tl* the contact owns a 2005 mercury monterey and while drivign 60 MPH the transmission failed. The failure only happened once. The vehicle was taken to the dealer for repair. The failure miles were 74382 and 75301 are the current miles.
Tl* the contact owns a 2005 mercury monterey. The contact stated that while driving approximately 50 MPH, the engine misfired and caused the vehicle to be jolted forward. The vehicle was taken to the dealer for diagnosis. After diagnosis, they advised him that water was entering the PCM and causing the failure. The vehicle was repaired by the PCM being resealed at the connector. The manufacturer…
My 2005 mercury monterey will 66,765 miles on it will not engage the transmission. You can put it in forward, reverse, or any other gear and it does not have the normal feel that any engagement happened. And when you let off the brake it does not move and when you give it some gas it does not move. It does not matter which gear it is in either. The car made it home with out any notice of the…
Please add me to your already long list of people begging for a recall on the 2005 mercury monterey transmission issues. *tr
We were traveling normally when suddenly all motive force was lost. The engine ran normally,but vehicle would not proceed under power. It was as if the vehicle was in neutral. The vehicle would not proceed under any power either forward or reverse. There was absolutely no warning of the power train failure. *tr
Had powertrain trouble with your 2005 Mercury Monterey?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the powertrain problem on the 2005 Mercury Monterey?
It's a documented issue but not catastrophic. 96 complaints have been filed. Repairs average $2,500 and most owners catch it before it causes a breakdown.
At what mileage does the powertrain typically fail?
Across the 86 complaints that reported odometer mileage, most powertrain failures cluster between 54,780 and 89,500 miles, with the median around 70,000. A quarter of owners report trouble before 54,780; a quarter make it past 89,500. Maintenance history matters more than the odometer alone — this is the reported failure window, not a guarantee.
What does it cost to fix?
Independent shops typically charge around $2,500 for powertrain repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to powertrain?
No active recalls currently cover powertrain issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2005/Mercury/Monterey.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.