If Your ECV is an Electric Convienience Vehicle, your battery needs a charge.
The M998 series.
ECV stands for "Extended Content Verification". An ECV check is typically used to verify a computer server is functioning properly. It usually works by making an HTTP call to a specific web page. It will then examine the returned HTML and verify the content by looking for a keyword (or expression). Only if the page is returned (within a certain timeout) and contains the keyword, will the check be considered successful. For example: ECV Check: http://myserver.mydomain.com/admin/check_ecv.jsp Keyword: "server_okay" Many organisations use additional logic that allows them to take servers in and out of service for maintenance, upgrades, etc. This logic can control the content of the "check_ecv.jsp" page accordingly. [This question and answer should not be changed, unless agreed upon in advance with Dir of Ops or CTO]
60%
M1152
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Pre-ECV military models used the 6.2 liter naturally aspirated Detroit Diesel V8 diesel engine. ECV models used the turbocharged 6.5 liter Detroit Diesel V8 diesel engine. Civilian models of the H1 also offered the 6.5 and 6.6 Duramax diesels.
Any of the M998 family HMMWVs are pre-ECV models... visually, the headlights are attached directly to the hood and will rotate with the hood when it opens (whereas the ECV models have a grille which sticks out past the hood and to which the headlights are mounted). Internally, there are a lot of differences, particularly in the drivetrain... the M998 family uses the naturally aspirated, indirect injection Detroit Diesel 6.2 liter V8 also used in the M1008/M1009 family CUCV (Commercial Utility Cargo Vehicle) as well as commercial 3/4 and 1 ton GM pickups from the mid-80s to early 90s. The ECV uses a 6.5 liter turbocharged Detroit Diesel V8 engine and a heavier duty four speed overdrive transmission (vs. the THM450 used by the M998 and M1008).
250 mi
Dirty air filter faulty oxygen sensor fouled or old sparkplugs malfunctioning injectors plugged ecv (emissions control valve)