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Engine Hard start once engine is hot?

  • Thread starter Thread starter 91GTstroked
  • Start date Start date Aug 19, 2019
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91GTstroked

15 Year Member
Jun 14, 2007
503
282
93
Aug 20, 2019
#21
  • Aug 20, 2019
  • #21
General karthief said:
When the car won't start, does it crank slow?
Click to expand...

Yes it cranked slower. But I've only had the car a few months and it's always cranked kinda slow.

Tomorrow I'll be getting the battery tested at advance auto. I guess it was replaced in 2017. But I'll likely buy one anyways with at least 800 CCA. Hopefully that's the problem. This weekend I'll probably check all grounds and install the relocation TFI kit as well.
 
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Boostedpimp

20+ Year Stangneter
May 8, 2003
1,451
493
154
NJ
Aug 21, 2019
#22
  • Aug 21, 2019
  • #22
Mini Starter was factory starting back in 1992 and if the car cranks but slowly then it's the battery that can't keep up or your wiring isn't up to the task.. So my money is on the battery in your case
 
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91GTstroked

15 Year Member
Jun 14, 2007
503
282
93
Aug 21, 2019
#23
  • Aug 21, 2019
  • #23
Update:

The Deka battery that was in the car checked out good. But it only has 580 cca.

I ended up buying a optima red top battery that has 800 cca. The car definitely cranks faster. The starter doesn't seem slow either.

I ran the car up to operating temp. Then shut the car off and restarted it about 3-4 times. It started right up.

We shall see, hopefully that was the issue. I'll have more time to drive it this weekend.

I'll keep this thread updated, thank you all for the help.
 
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Ray65-71-73

New Member
Dec 11, 2001
24
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Apple Valley, CA
Aug 24, 2019
#24
  • Aug 24, 2019
  • #24
You apparently fixed your issue with a battery. The last time I had that issue it was a worn starter nose bushing.

Those clamp terminals are subject to corrosion. If you are going to put a battery in the trunk, out of sight and out of mind, I suggest absorbent glass mat (AGM), which can be mounted in any position, which you may have in that Optima, and studs with soldered terminals.

I have two such batteries in the trunk of my 65. See link at bottom.
Amazon product ASIN B00S1RT58CView: https://www.amazon.com/Universal-Power-Group-100Ah-Battery/dp/B00S1RT58C/ref=pd_rhf_ee_s_rp_c_0_3/135-7872845-0577167?_encoding=UTF8&pd_rd_i=B00S1RT58C&pd_rd_r=3e6bc520-ae56-4b18-80f2-7fb14faab854&pd_rd_w=B7MQK&pd_rd_wg=QwKzs&pf_rd_p=d59c4be5-f193-4660-b12b-ea6611e15f85&pf_rd_r=XHVBQXF8PMKKGGYNE5C9&psc=1&refRID=XHVBQXF8PMKKGGYNE5C9
 
Last edited: Aug 24, 2019
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91GTstroked

15 Year Member
Jun 14, 2007
503
282
93
Aug 24, 2019
#25
  • Aug 24, 2019
  • #25
Ray65-71-73 said:
You apparently fixed your issue with a battery. The last time I had that issue it was a worn starter nose bushing.

Those clamp terminals are subject to corrosion. If you are going to put a battery in the trunk, out of sight and out of mind, I suggest absorbent glass mat (AGM), which can be mounted in any position, which you may have in that Optima, and studs with soldered terminals.

I have two such batteries in the trunk of my 65. See link at bottom.
Amazon product ASIN B00S1RT58CView: https://www.amazon.com/Universal-Power-Group-100Ah-Battery/dp/B00S1RT58C/ref=pd_rhf_ee_s_rp_c_0_3/135-7872845-0577167?_encoding=UTF8&pd_rd_i=B00S1RT58C&pd_rd_r=3e6bc520-ae56-4b18-80f2-7fb14faab854&pd_rd_w=B7MQK&pd_rd_wg=QwKzs&pf_rd_p=d59c4be5-f193-4660-b12b-ea6611e15f85&pf_rd_r=XHVBQXF8PMKKGGYNE5C9&psc=1&refRID=XHVBQXF8PMKKGGYNE5C9
Click to expand...

Thanks for the information. So far the optima battery is holding up. I'll eventually put lugs on the cables with different terminal's.
 

TrophyHead

15 Year Member
Mar 18, 2003
1,195
11
49
PA
Sep 1, 2019
#26
  • Sep 1, 2019
  • #26
I'm running a XS 925 battery. It was great when it was new now it doesn't want to turn my engine over. I have mine hidden in the spare tire well. I ended up using the battery from my daily driver and starts up with no issues.

I now need to order another mount and another xs 925 battery for more cranking amps.
 
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