Think my starter is dying - need second opinion.

[RedTRex]

Car has started cranking slow, slow like when the battery has low voltage or it's very very cold out. I just put a brand new battery in last night (Maxx H7 - 12/12 date code) does the exact same thimg. Starter does not make any weird noises..... engine just goes wuh, wuh, and then fires right up..... At the B+ jumper underhood. I get 12.5V en
gine off and 13.9-14.0v engine running.

Just changed plugs last week. Has 90,292 miles.
Rick

[BavarianZHP]

Could be the starter. How's the oil? When was your last change? If the starter is good, I'd be worried about the load on it. I think you should be running around 14.5V with the engine on, could be a regulator issue but that wouldn't explain your slow start.

[wsmeyer]

At the B+ jumper underhood. I get 12.5V engine off and 13.9-14.0v engine running.
Rick

These are exactly what they should be for a new battery and properly working voltage regulator.

I think it's the starter but that's en expensive guess.

If it is the starter it would be bad windings, which would also cause a higher resistance across the terminals. A few people here have service manuals and can look up the correct values.

William.

[RedTRex]

Oil is full and changed less than 1k miles ago. I cleaned ground strap and B+ terminal underhood.

Wondering...... I let it run for only 15 min after battery swap, maybe new one needs a good charge?

[Oli77]

Yep, could be. Although every battery I have ever bought would always be rather fully charged right from the get go.

[Washburn]

I also got a H7 a few days ago with date code 5/12 - absolutely no problems starting...So i doubt that it's the new battery.

[telijah]

I thought there was some relay for the starter known to cause these kinds of slow/weak cranking scenarios, or is that my imagination? Same as the horn relay or something?

[RedTRex]

Well guys its definately the starter. I took a ride for a fews hours this afternoon. I stopped at gas station to pee and the starter would not work at all. No click no nothing. Got a quick push start. I guess tomorrow i will be swapping starters.

[kayger12]

^Ugh. That just doesn't look like a fun job.

[Hornung418]

I paid a shop for that one. Had to drop the trans instead of pulling the intake manifold. Hope its warm in your garage if your doing it yourself.

From a GS3, this was sent.