88 2.8 sputters and shuts off

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PA_88
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88 2.8 sputters and shuts off

Postby PA_88 » Fri Aug 14, 2015 9:26 am

Greetings all,
Glad I found the forum.

ill get right to it. I have an 88, 2.8 V6 automatic. 123,XXX.

recently tuned it up. took it for a test run, no problems. on my way to work, about 20 miles after the tune up, car began to sputter like it was missing. pulled over to check the wires, car then shuts off. wouldnt fire back up, turns over catches for a second, sputters, dies.

Let it sit for an hour, fires right back up then dies after about 2 mins max.

Let is sit over night, again fires up. didn't die after 2 mins but i didn't drive it either just in case.

Thoughts??



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1988GTU
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Re: 88 2.8 sputters and shuts off

Postby 1988GTU » Fri Aug 14, 2015 1:13 pm

Either ICM or coil issue(s). Grab a 5.5mm and check them over for cracking or heat damage.


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PA_88
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Re: 88 2.8 sputters and shuts off

Postby PA_88 » Fri Aug 14, 2015 1:28 pm

thanks. the coils are fairly new (Ac delco OS) if that isn't it any other ideas? how do i test the ICM?



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Re: 88 2.8 sputters and shuts off

Postby themixer » Sat Aug 15, 2015 9:47 pm

In America I believe it's autozone that checks these icms



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Re: 88 2.8 sputters and shuts off

Postby Cliff8928 » Sun Aug 16, 2015 12:21 am

I'd also check the resistance on the fuel injectors to make sure that one of them didn't develop an internal short. I experienced these symptoms many times on my 2.8 because of this.


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PA_88
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Re: 88 2.8 sputters and shuts off

Postby PA_88 » Tue Aug 18, 2015 6:39 pm

Thanks guys.




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