My in-line fuse blew so I replaced it. Then after I replaced it my amp played for about two minutes. Then It totally quit. I checked the in-line fuse and it is fine. I then checked the amps fuses are they were blown. I then replaced the amp's fuses and when I went to put the new ones in the immediatly blew. What is going on? Any suggestions?
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Re: Car Amp keeps blowing fuses
The reason why fuses blow is that the current is too much. Is the fuse rating according to the specs ? If yes then ...
One or more output power transistor (or audio power IC) may be shorted.
have it checked before replacing another fuse as this might cause more damage.
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You have possibly melted a couple of wires together along the radio circuit. Also the radio unit itself has 1 or more protection fuses actually inside the unit that have blown, usually at back of unit in little bay near the wire clusters.
Check your relays too, a blow out through jump starting can do all sorts of little burn-outs.
Because some component in the amp is failing/failed and drawing too much current. The amp needs a repair shop. Poking around without knowing what you're doing can expose you to leather voltage. Don't do it.
If the fuse is correct ( check manual) it shouldn't blow under normal operation. Once in while a fuse will break internally and thus blow the fuse. look close at the blown fuse If it is a "violent" blow (totally black inside) then you have an overload condition. I would use an ohm meter to check the connection to the speakers. Usually it should be between 8 ohms and 4 ohms if the number is lower than 4 ohms your speakers or wiring are putting to much of a load on the amp. If the fuse was not a "violent" blown fuse then replace with a new fuse of the exact proper value. many amps use an MDL fuse that is a slow blow fuse and has much different in circuit function than a ACG fuse so use only the exact proper furse that the manufacture recomends. If the load (speaker and wiring) is correct and the fuse is correct and still blows then you have a component problem and the amp will need repair
I'm betting it has something to do with the shift lock actuator or the harness to the actuator. I'm pretty sure it is located on the top of the steering column on your vehicle. The lower part of the dash will need to be removed and then the steering column lowered in order to gain access to it.
This vehicle does have an airbag and unless you experience with airbag systems I would not recommend tackling this yourself.
unplug the interlock. Replace the fuse. Start the vehicle. with your foot on the brake manually release the interlock with you hand and shift through the gears. If the fuse does not blow your on the right track. If the fuse does blow let me know and I'll get you some more info.
Let me know if you have any questions and thank you for using Fixya.com
My car stopped running without any warning, its a 2005ford focus, 2.0 and the 20 amp fuse for the engine management keeps blowing, it's number 9 in the panel and I have replaced it twice, both times it blew again, any tips? Also the odometer reads ------ and that's it.
Your 20 amp fuse will not blow if glowplug wire shorts. each plug draws 15 amps which is 120 amps total.I think there are in line fuses for them. Try to wring out where each output from the fuse goes, disconnect all and reconnect one at a time till it blows.That should point to your problem process of illumination! Good Luck!!