Ford Focus Mk2 Forum (2004-2010) Mechanical (Mk2 Focus) New Alternator and now problems. Jump to Latest Follow 1 - 4 of 4 Posts. R. r1ck5-focus · Registered. Joined As Alb said - most likely to be the battery. Check that the terminals are clean & tight and the earths too. Might be worth getting a decent battery tester that can do more than just read voltage. Mine shows battery health, weather good or bad, % of charge and can also test alternator output. Replacing an alternator in an average car will cost from 1.0 to 2.5 hours of labor, depending on the difficulty, plus the part. A new aftermarket alternator will cost $130 to $320 (part only). An OEM alternator from a dealer will more expensive. Another alternative is to have your alternator rebuilt. At 2000 rpm, there should be hardly any drop in voltage.if the alternator is ok. Even at idle, it should hold at 13v or more. If the battery warning light is on, and it never gets to 14v, then it is either alternator, or the connections to it. Check the fat wire from the battery +ve to the alternator, and the fat wire from battery -ve to the Ford do a stretch on aux belt design which is a pita to do but on the earlier type (you didnt say weather mk1 or mk2) it has a tensioner with a 13mm bolt which can be easily released. It's fairly The battery measures 12.75v engine off and 14.92v idling. Off voltage should be 12.6v max and running should be 14.7v max so both are high. A friend said bad grounds/wiring could have killed the original alternator so I cleaned the engine block->chassis ground, the battery terminals and every wire coming off either battery terminal. A new alternator voltage regulator will cost you anywhere from $40 to $140 for parts, heavily dependent on the make/model of vehicle and whether using OEM or aftermarket parts. The cost of parts doesn’t sound so bad, but since most voltage regulators are housed inside the alternator, expect to pay around $140 to $240 in labor. SSgtjrobertson. 5931 posts · Joined 2016. #24 · Apr 14, 2022. 250A High Output Alternator for Ford Focus, 2013 - 2018 2.0L L4 (122c.i.) VIN 9 - 11551-250-HD1-1 | PowerBastards.com | PowerBastards.com. Welcome to PowerBastards.com your online source for high output alternators. dmchxE.

ford focus mk2 alternator problems