2004 Mercury Monterey Transmission & Power Train Problems
NHTSA component category: POWER TRAIN · data through 07/14/2026
Source: U.S. NHTSA complaint data. Complaints are unverified reports from vehicle owners — a complaint is not a confirmed defect.
How power train ranks on this vehicle
Share of the 283 complaints citing each category; one complaint can cite several. Full breakdown on the 2004 Mercury Monterey overview page.
What owners report
“2004 MERCURY MONTEREY - WIFE DRIVING DOWN THE HIGHWAY (WITH ONE CHILD AS A PASSENGER) AT 65 MPH. VEHICLE LOST ALL ABILITY TO ACCELERATE. NO…”NHTSA complaint 10357981 — filed 09/28/2010
“TRAVELING ALONG RT.270 TOWARDS ST.LOUIS REGIONAL AIRPORT AT 60 MPR LOST GO POWER. LUCKILY ENGINE CONTINUED TO RUN SO WAS ABLE TO MOVE OUT OF…”NHTSA complaint 10355917 — filed 09/16/2010
“2004 MERCURY MONTEREY LOST POWER WHILE DRIVING 65MPH ON FREEWAY. I WAS ABLE TO COAST TO THE NEXT EXIT RAMP AND CALLED A TOW TRUCK…”NHTSA complaint 10352553 — filed 08/29/2010
Excerpts are shortened and scrubbed of personal details; they are individual, unverified reports.
Power Train complaints by year filed
Frequently asked questions
Does the 2004 Mercury Monterey have transmission & power train problems?
Power Train is the #2 most-reported problem area on the 2004 Mercury Monterey: 70 of 283 complaints on file (24.7%). Complaints are unverified owner reports, not confirmed defects.
How many complaints does the 2004 Mercury Monterey have in total?
283 complaints were on file with NHTSA as of 07/14/2026. Across all categories, 2 involved a crash, 6 involved a fire, 1 reported injuries, and none reported deaths.
What does NHTSA's power train category include?
NHTSA groups complaints about the transmission (automatic or manual), driveline, axles, transfer case and related parts under a single component category called POWER TRAIN. This page reports that category as NHTSA defines it.
