Quick Missfire

[SVX_MY_BABY]

Here's a question for you.

Yesterday I took the SVX out for a drive after it sat for just over 3 weeks. After it was warmed up I was cruising along at 50 km/h (30 mph) and there was a sudden loss of power. The tach dropped to zero and there was a clicking sound which seemed to be from the instrument cluster. I was just about to pull over when everything came back to normal. The whole episode lasted 15 to 20 seconds. Hasn't happened since.

I changed my battery a few months ago and had to recharge it after it went flat within a month. Had it tested and supposedly it's fine.

Could this have been caused by a bad battery shorting out?

Any comments welcome.

[svxnavyvet]

Alternator wires or bad ground. there is a upgrade for the wires on here.

[Noriyasu]

Are the battery terminals loose? It often happens when you change the battery

[SVX_MY_BABY]

Battery terminals are tight.

I did have the alternator changed when I got the new battery. The old one wasn't putting out what it should. Replacement is a salvaged unit. I'll have the shop check out the wires & ground next week.

[Noriyasu]

If the alternator has been replaced, it's a good idea to check the connector and B terminal for looseness. Judging from the phenomenon, it seems that all power was lost once.

I recommend that you check all points of wiring that the shop removed when they replaced the battery and alternator. I'm particularly concerned about the loosening of the ground wire.

[johnsvx]

Not quite the same issue, but I have had similar issues with battery voltage/altenator not charging the battery properly. I replaced the battery last year and the altenator this year - only to have low voltage issues a month later that affected the starter (also new) as the battery was always around 11.5 volts, even after driving long periods. I had it tested by Walmart and Autozone multiple times, the result always came back good. Turns out, the main wire from the altenator to the battery had a ton of corrosion. I sanded/wire brushed that off and my voltage returned to the proper 12.5+ volts.

Not sure if that helps, but it puzzled me for months and I figured I should share the knowledge... Otherwise, best of luck with finding a solution!

[SVX_MY_BABY]

I had the mechanic check the wiring and connections on the alternator and battery when I had some exhaust work done. He says all looks fine.

Car has performed normally until two days ago when it stuttered for a brief second then half an hour later it completely died on me. I pulled over at which point all the dash lights were on as if I had just put the key into the ignition. I started the car and it's been working fine.

I hate these types of intermittent problems.

The weather is now hovering near the freezing point. As soon as I get a warm day I'm going to go through all the connections myself. Hopefully I'll find something.