long crank when cold, hard start

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LaGrasta
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long crank when cold, hard start

Post by LaGrasta » Tue Dec 11, 2018 8:55 pm

I have no codes, but fairly often, the '98 cranks for nearly 20 seconds in the morning until it fires, and runs perfect the remainder of the day. I swapped the crankshaft sensor thinking that was the problem, and it was only okay for a week or so. I checked fuel pressure and it was good and held pressure as well. Suggestions?

recent tune up, new dizzy replaced and even smoked last month with a new convertor.
1998 Astro, 224,000 miles

K&N air filter
TruCool trans cooler
2" Overland lift & 15" BFG Terrain, 3.73 gears
JET Performance SCU-2000 (Speed Control Unit)
Gabriel Ultra shocks, rear AirLift bags & sway bar
iPOD, CD, DVD, Dutch door mounted 12s, 400w
Draw-Tite Dual Port Hitch System, hitch-mounted bike rack (4), hitch-mounted cargo tray, Thule roof-mounted cargo box

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LaGrasta
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How many wheels are on an Astro van? (4): 4
Location: Mission Viejo, CA

Re: long crank when cold, hard start

Post by LaGrasta » Wed Dec 12, 2018 3:54 pm

This morning, first try, starts right up. Intermitted problems are the worse!
1998 Astro, 224,000 miles

K&N air filter
TruCool trans cooler
2" Overland lift & 15" BFG Terrain, 3.73 gears
JET Performance SCU-2000 (Speed Control Unit)
Gabriel Ultra shocks, rear AirLift bags & sway bar
iPOD, CD, DVD, Dutch door mounted 12s, 400w
Draw-Tite Dual Port Hitch System, hitch-mounted bike rack (4), hitch-mounted cargo tray, Thule roof-mounted cargo box

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LaGrasta
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How many wheels are on an Astro van? (4): 4
Location: Mission Viejo, CA

Re: long crank when cold, hard start

Post by LaGrasta » Mon Jan 28, 2019 7:19 pm

it was the fuel pump, all is well now.
1998 Astro, 224,000 miles

K&N air filter
TruCool trans cooler
2" Overland lift & 15" BFG Terrain, 3.73 gears
JET Performance SCU-2000 (Speed Control Unit)
Gabriel Ultra shocks, rear AirLift bags & sway bar
iPOD, CD, DVD, Dutch door mounted 12s, 400w
Draw-Tite Dual Port Hitch System, hitch-mounted bike rack (4), hitch-mounted cargo tray, Thule roof-mounted cargo box

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Mmusicman
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Re: long crank when cold, hard start

Post by Mmusicman » Tue Jan 29, 2019 6:55 pm

LaGrasta wrote:I swapped the crankshaft sensor thinking that was the problem, and it was only okay for a week or so. I checked fuel pressure and it was good and held pressure as well..
It's interesting that the crankshaft sensor "cured the problem for a week a so".. then the problem came back?
Normally I would think if this fixed it once, then replacing it again would fix it again?

Oddly, you also claimed the fuel pressure was "good", yet the fuel pump eventually turned out to be the problem?

I'm glad despite all this "diagnosis".. you were able to fix the problem.
Yes.. intermittents can sure be fun! :yawinkle:
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2000 Chevy Astro LS AWD | 31" LT265/70R17 Tires | 8" LIFT | 10" TOTAL
92 Chevy Astro Shorty | V8-350
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LaGrasta
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Re: long crank when cold, hard start

Post by LaGrasta » Tue Jan 29, 2019 7:03 pm

I agree, thus my being so confused chasing the problem. My guess is being intermediate, what I thought fixed it or the correct fuel pressure was temporary deceit.
1998 Astro, 224,000 miles

K&N air filter
TruCool trans cooler
2" Overland lift & 15" BFG Terrain, 3.73 gears
JET Performance SCU-2000 (Speed Control Unit)
Gabriel Ultra shocks, rear AirLift bags & sway bar
iPOD, CD, DVD, Dutch door mounted 12s, 400w
Draw-Tite Dual Port Hitch System, hitch-mounted bike rack (4), hitch-mounted cargo tray, Thule roof-mounted cargo box

User avatar
LaGrasta
I sleep in my van
Posts: 715
Joined: Fri Jan 19, 2007 10:07 pm
antispam: No
How many wheels are on an Astro van? (4): 4
Location: Mission Viejo, CA

Re: long crank when cold, hard start

Post by LaGrasta » Fri Feb 01, 2019 3:46 pm

Ah, so frustrating! It wouldn't start this morning, just cranked and cranked.
1998 Astro, 224,000 miles

K&N air filter
TruCool trans cooler
2" Overland lift & 15" BFG Terrain, 3.73 gears
JET Performance SCU-2000 (Speed Control Unit)
Gabriel Ultra shocks, rear AirLift bags & sway bar
iPOD, CD, DVD, Dutch door mounted 12s, 400w
Draw-Tite Dual Port Hitch System, hitch-mounted bike rack (4), hitch-mounted cargo tray, Thule roof-mounted cargo box

User avatar
LaGrasta
I sleep in my van
Posts: 715
Joined: Fri Jan 19, 2007 10:07 pm
antispam: No
How many wheels are on an Astro van? (4): 4
Location: Mission Viejo, CA

Re: long crank when cold, hard start

Post by LaGrasta » Tue Feb 26, 2019 5:18 pm

I finally took it to a shop, they replaced my distributor. I had just replaced it 6,000 miles ago. Granted it was an Amazon brand, but it had the very best ratings.
$150 shop fee and $50 for yet, another Amozon brand dizzy. Different brand though, still the highest ratings.
1998 Astro, 224,000 miles

K&N air filter
TruCool trans cooler
2" Overland lift & 15" BFG Terrain, 3.73 gears
JET Performance SCU-2000 (Speed Control Unit)
Gabriel Ultra shocks, rear AirLift bags & sway bar
iPOD, CD, DVD, Dutch door mounted 12s, 400w
Draw-Tite Dual Port Hitch System, hitch-mounted bike rack (4), hitch-mounted cargo tray, Thule roof-mounted cargo box

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Re: long crank when cold, hard start

Post by timelessbeing » Tue Feb 26, 2019 6:56 pm


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