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Evo 8 Cranks, But Wont Start After Trip

 
Old Sep 25, 2018, 06:35 PM
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Evo 8 Cranks, But Wont Start After Trip

So basic story goes; I took the Evo 8 to a softball tourney out of town (about 50 miles one way). Played a game, wanted to go to the bar afterwards to watch the football game and Evo would crank, but not turn over. Thinking that since I run a smaller battery that it could be weak and needed a jump? So had a friend meet me and try the good ole jumping. That did not work, car would crank and crank but would not turn over. So I decided to get some tools and try and do some simple things (unplug battery, check wires, etc). To no avail the car would not turn over. So had to have the wife meet me and had the car flat-bedded back to the house were it currently sits.

Since the following I have checked the plugs (they were changed about 2 weeks ago), charged the battery (as it was replaced about a month ago), bought and installed a new fuel pump (will note why I did so later), and as a last resort went and bought a new Camshaft postion sensor for SnG's.

So why I bought a new fuel pump? I am running a walbro 450 as a main pump and running a second walbro 450 on a hobbs switch. In hindsight I am able to jump the second pump to put fuel pressure in the line and the car will act like it wants to turn over until there is no more fuel in the lines. Thinking that replacing the main pump would solve the issue (it did not). The car is still sitting in my garage half torn apart and running out of options of what it could be? Any extra info needed to help solve this I am more than willing to dish out.

Thanks!

Edit (1): Car seems to have zero fuel pressure on start up. AFR gauge will flash 22.9 on crank. Checked all fuses and all are good.

Edit (2) Tried to work on the car after work today and now the car wont crank and/or start at all. Almost at a loss at what else it would be?

Last edited by Frasch; Sep 26, 2018 at 01:07 PM.
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Old Sep 26, 2018, 01:04 PM
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Old Sep 26, 2018, 01:21 PM
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Does the car have any power? Headlights, radio, etc all working? Battery is at full charge?
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Old Sep 26, 2018, 02:12 PM
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Yes car has power - Headlights, radio, sunroof.. All working
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Old Sep 26, 2018, 02:17 PM
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No dimming? That is curious...
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Old Sep 26, 2018, 03:29 PM
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No dimming of the lights as well.
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Old Sep 26, 2018, 03:31 PM
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You may have more than one problem. Electrical gremlins SUCK.
No matter how many times you turn the key on and off, no cranking? I ask because the switch can go bad...
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Old Sep 26, 2018, 03:53 PM
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Yes as of right now no cranking. I do have the battery on a different charger thinking maybe the other one went bad. Have a friend coming over in a bit to check spark on plugs of car will then crank. Otherwise I am leaning towards starter as well?
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Old Sep 26, 2018, 03:58 PM
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You can try to jump the starter to test it. If not the battery and not the switch, starter could be the next to check.
once it's cranking over ,then you can move on to why it's not firing up.
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Old Sep 26, 2018, 05:17 PM
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im confused...

when you say the car will "crank and crank, but not turn over".

do you mean the starter is turning the motor over but it wont start?

or the starter wont turn over the motor (as in click, click... or no noise at all)
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Old Sep 26, 2018, 06:08 PM
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Check for codes. Then check for spark and fuel.
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Old Sep 26, 2018, 06:49 PM
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Originally Posted by hutch959 View Post
im confused...

when you say the car will "crank and crank, but not turn over".

do you mean the starter is turning the motor over but it wont start?

or the starter wont turn over the motor (as in click, click... or no noise at all)
Yeah, the OP is using confusing terms, crank and turn over mean the same thing.
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Old Sep 28, 2018, 02:47 PM
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Originally Posted by hutch959 View Post
im confused...

when you say the car will "crank and crank, but not turn over".

do you mean the starter is turning the motor over but it wont start?
Yes
or the starter wont turn over the motor (as in click, click... or no noise at all)
This is what happened afterwards (no noise)
UPDATE: -- Turns out the starter was indeed dead. Motor on the starter would not stay engaged. Put replacement starter in, car would turn over finally, but would not start. If I jump the auxiliary (2nd) fuel pump and put fuel in the line the car will start for about 5 to 10 seconds til fuel runs out of the lines then shuts off. Leaning towards the fuel pump relay? Would this play a factor with controlling the fuel on the main pump?
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Old Sep 28, 2018, 03:29 PM
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Did you test the primary pump? If it's working, then relay could be the culprit. Kinda hard to say for sure, since you have two pumps and other stuff going on.
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Old Sep 28, 2018, 04:16 PM
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Originally Posted by kaj View Post
Did you test the primary pump? If it's working, then relay could be the culprit. Kinda hard to say for sure, since you have two pumps and other stuff going on.
Yes. Didn't know if it was mentioned above, but thought the primary pump was the culprit before so since then the primary pump has been replaced and installed. New pump was working prior to being fully installed. Getting a multi-meter to check relay and will report back.
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