Dynodan

Well First time to this board spent about 4 hrs. reading all the threads. I must say you folks sure run a fine board .
My wife allowed me to take my bird out of storage since the kids have gotten a little older and I finally have time to work on it.
The question I have is when I crank on the engine the oil gauge drops to 0 then builds up to 15 psi then the car will start .
This takes about 30 seconds of cranking the motor constantly.
After it starts no problems running at all the car runs like it was new no bogging out , or studdering, At first I assumed it was a fuel pump problem. Now I really don't think it is cause the car runs so smooth after starting , the oil gauge holds a steady 30 psi or higher after the car starts.

Thanks for any help that you can give
Dyno
The dad that was let out of his cage:

Trickster

Have you had this problem for awhile or is this the first time you have started the car in a while. Did you change the oil when you took it out of storage. Also, you don't want to crank it too long at one time or you will kill the battery and wear out the starter. I mention this because of your comment about 30 seconds of cranking constantly

Dynodan

I actually had the problem before I put it into storage.
When I pulled it from storage I placed new plugs in , new wires for the plugs , changed the oil, did a tranny flush, and a coolant flush.

I placed it in storage when this started kids were born and no time to work on it, my brothers says it needs a fuel pump.
but I don't believe him he is the type of guy that uses vice grips to turn a nut

Yea I hate cranking it for that long to start it ,I replaced the fuel relay when I brought it out of storage , I was wondering if the oil pump sensor could cause this problem .

Dyno

Stekman

How's the battery?

Dynodan

Batterys about a month old.
The car runs great after cranking for that 30 seconds , it just like it starving for the initial fuel to start it , and the oil pressure needs to build up on the oil gauge before it turns over.

Dyno

Trickster

Here's a few items that you could check. Some of the items listed here you have already done.

Dynodan

Thanks trickster will use that list, to check the stuff out won't hear from me till Sunday , Unless i can get the 2 year to do the cranking of the engine for me.

Dyno

IROCThe5.7L

Im not sure if its like TPI but with TPI, the fuel pump relay primes the system with fuel before startup. If it dosent, when the car is cranking, it will eventually give voltage through the oil pressure switch.


Try replacing the relay.

Trickster

He did.

Dynodan

Ok I decided to repull the chilton book out, and take another look at the wiring. Seems in my haste to put the relay in I swapped the one out for the blower I believe, anyhoo I swapped the relays with each other tried it out started up like a kitten. Next time I will take a better look at the color of the wires. Glad I didn't pull that tank , the floor is sure cold in wisconsin during winter.

Thanks Trickster and all the folks that posted about the relays and fuel problems it helped me a great deal. One thing them chilton books suck for pictures. I swear they were better looking books for the earlier cars easier to see the pictures. The factory services manuals how much does a set of them run for now a days.

Dynodan
The Man who forgot to read the plans.

P.S are the 2 relays that are next to each others the same exact relays or diffrent in settings .