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Author Topic: My new truck  (Read 2976 times)

Offline redbird.farm.7

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My new truck
« on: July 24, 2014, 07:51:37 PM »
Hi, I'm new here. I just bought an '87 Chev 3500 dump and looking for info on repairs and trouble shooting. It's in real good condition with 70K mi. I'm trying to figure out why the cranking time is so long. It has fuel injection and a 350 engine.
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Offline VileZambonie

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Re: My new truck
« Reply #1 on: July 24, 2014, 08:02:17 PM »
Check the basics first ie tune up items and check fuel pressure. If you bypass the fuel pump relay and energize the pump at the pigtail does it start immediately?
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Offline zieg85

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Re: My new truck
« Reply #2 on: July 24, 2014, 08:06:19 PM »
Welcome from NW Indiana
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Offline bake74

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Re: My new truck
« Reply #3 on: July 24, 2014, 09:29:04 PM »
     Welcome from California.  Vile knows what he is talking about.
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Offline dvdswan

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Re: My new truck
« Reply #4 on: July 24, 2014, 09:36:44 PM »
welcome from the PNW.
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Offline Dan75k20

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Re: My new truck
« Reply #5 on: July 25, 2014, 06:21:50 PM »
Welcome from Pittsburgh
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Offline Tazman

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Re: My new truck
« Reply #6 on: July 26, 2014, 03:00:57 PM »
Welcome from AZ.
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Offline DuckAholic1

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Re: My new truck
« Reply #7 on: July 26, 2014, 10:11:17 PM »
Quote from: VileZambonie on July 24, 2014, 08:02:17 PM
Check the basics first ie tune up items and check fuel pressure. If you bypass the fuel pump relay and energize the pump at the pigtail does it start immediately?

I have the same problem w/my 87. Vile, I was wandering if you can give some diirection on how to do this.(feul pump bypass/pressure) I just did a tune up ( plugs wires cap rotor pcv air filter etc.) Sure would like to know why it still has such a long crank time!!
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Offline Irish_Alley

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Re: My new truck
« Reply #8 on: July 30, 2014, 11:27:11 PM »
do you hear the fuel pump prime when you first turn the key on?
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Offline DuckAholic1

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Re: My new truck
« Reply #9 on: August 01, 2014, 10:10:50 PM »
No, not really!! I here a sort of click sound approx. 1-2 seconds after I turn key.
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Offline Irish_Alley

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Re: My new truck
« Reply #10 on: August 01, 2014, 10:37:22 PM »
now this is kind of a theory im working on and kind of like vile was saying but if your relay is bad you can still start the truck (best thing is to bypass it like he said). just you have to build up oil pressure, this is why it takes so long to start.  the oil pressure switch will act like a fail safe to the relay. meaning if your driving and the relay craps out your truck wont die unless your oil pressure switch is also bad. this will allow you make it home most time you wont notice till you try to start the truck again and it would take longer than normal time to start it.
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When you have eliminated the impossible, whatever remains, however improbable, must be the truth ~Sherlock Holmes

Offline Irish_Alley

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Re: My new truck
« Reply #11 on: August 16, 2014, 10:36:10 PM »
any update?
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When you have eliminated the impossible, whatever remains, however improbable, must be the truth ~Sherlock Holmes
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