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I have a 96 s10 with 2.2 manual trans. Shut it off and now…

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I have a 96 s10...
I have a 96 s10 with 2.2 manual trans. Shut it off and now wont restart. New fuel pump, regulator, plugs. Timing chain has no slack and marks line up. starts with starting fluid only. Roughly.
Submitted: 7 months ago.Category: Chevy
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11/11/2017
Chevy Mechanic: AMEDEE, CHEVY TECHNICIAN replied 7 months ago
AMEDEE
AMEDEE, CHEVY TECHNICIAN
Category: Chevy
Satisfied Customers: 28,013
Experience: ASE certified tech ADVANCED LEVEL SPECIALIST. Wisconsin certified emissions state inspector
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Hello and welcome!

Thank you for your question. My name is ***** ***** I will be happy to assist you today. I am reviewing the details now.

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Chevy Mechanic: AMEDEE, CHEVY TECHNICIAN replied 7 months ago

Does the fuel pump run when the key is turned on?

If so, what is the fuel pressure at when cranking?

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Customer reply replied 7 months ago
fuel system is all new
Chevy Mechanic: AMEDEE, CHEVY TECHNICIAN replied 7 months ago

I understand sir.

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Customer reply replied 7 months ago
it runs
Customer reply replied 7 months ago
no port to check
Chevy Mechanic: AMEDEE, CHEVY TECHNICIAN replied 7 months ago

Got it!

Are there any antitheft or security lights on or flashing on the cluster when trying to start the engine?

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Customer reply replied 7 months ago
no
Chevy Mechanic: AMEDEE, CHEVY TECHNICIAN replied 7 months ago

Have you checked injector pulse?

If not, that would be your next step.

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Customer reply replied 7 months ago
truck was running into gas station. wouldn't restart. How would injector pulse drop that quick? Wouldn't that be a crank sensor out then?
Chevy Mechanic: AMEDEE, CHEVY TECHNICIAN replied 7 months ago

YES, the crank sensor, TPS, MAP sensor or something else like a wiring issue or a faulty PCM could do this.

However, it would need to be checked before replacing anything.

Also, you would need to verify fuel pressure is within specs just to be sure it is within specifications.

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Chevy Mechanic: AMEDEE, CHEVY TECHNICIAN replied 7 months ago

My goal is to give you the best experience possible! I hope I have earned a 5 star rating! Please remember to rate my service by selecting the 5 stars at the top of the screen before you leave today. If you need more assistance, please use the reply box and let me know.

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Customer reply replied 7 months ago
live data shows they are all within parameters
Chevy Mechanic: AMEDEE, CHEVY TECHNICIAN replied 7 months ago

Would you be willing to speak on the phone?

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Customer reply replied 7 months ago
no. open it to other experts.
Chevy Mechanic: AMEDEE, CHEVY TECHNICIAN replied 7 months ago

Sure thing.

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Chevy Mechanic: Roy, import/domestic specialest replied 7 months ago
Roy
Roy, import/domestic specialest
Category: Chevy
Satisfied Customers: 7,602
Experience: ASE master tech for 40 years
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do you still need help???

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Chevy Mechanic: Roy, import/domestic specialest replied 7 months ago

if you still need help, I am standing by

Roy

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Chevy Mechanic: Roy, import/domestic specialest replied 7 months ago

ok.

you said all readings were normal?? how did you verify when the engine is not running???

1. check fuel pressure. I know the engine does not have a port. you need to T into the fuel filter to verify correct pressure

2. did you verify it has spark?? does the tach move or do you have rpm reading with cranking???

3. are there any codes??

Roy

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Customer reply replied 7 months ago
1. new pump, filter and regulator. fills quart jar really fast.
2. yes. at plug and live data shows rpm signal.
3. no.
Chevy Mechanic: Roy, import/domestic specialest replied 7 months ago

if you spray starter fluid into the air filter does it start and stall??

did you use a noid light on the injector to see if the pcm is commanding the injector on and off???

Roy

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Chevy Mechanic: Roy, import/domestic specialest replied 7 months ago

the fuel pressure spec is 41-47 lbs. anything below that is no good.

is this a pick up or blaser series???

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Customer reply replied 7 months ago
starting fluid will run and stall. Its a pickup.
Will be a bit till I can get to pull more stuff to check injectors with a noid light. Will let you know when I can.
Chevy Mechanic: Roy, import/domestic specialest replied 7 months ago

ok, then at least you know it is a fuel delivery issue.

one thing, there were 2 fuel pumps available for this in that year. there was a low pressure pump and a high pressure pump. I have got bit on this where the parts store gave me a low pressure pump instead of the high pressure pump. thats why I suggested you check the actual pressure. you can rent a gauge at a parts store and T into the filter to see the actual pressure.

Roy

Please take a moment and rate my service 3 stars or better. that is the only way the site will pay me for my efforts.

Roy

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Customer reply replied 7 months ago
4 parts stores and none of them show 2 different pressure pumps.
Chevy Mechanic: Roy, import/domestic specialest replied 7 months ago

what brand and number pump did you get?? I have been through this many times. the parts guys look up for S10 blaser and do not look to see whether it is a pick up or suv. the suv has a different pump for a 2 door or 4 door.

Roy

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Customer reply replied 7 months ago
fg0027
Customer reply replied 7 months ago
delphi
Chevy Mechanic: Roy, import/domestic specialest replied 7 months ago

ok, sorry, on phone with another customer

let me check

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Chevy Mechanic: Roy, import/domestic specialest replied 7 months ago

yep, thats the one for it.

you still need to verify the pressure to rule out a bad new pump

Roy

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Customer reply replied 7 months ago
Still no start. Fuel pressure is 45psi. Timing marks line up like they should. Removed valve cover and rockers are doing what they are supposed to.
Compression is
1 150
2 60
3 60
4 60
Chevy Mechanic: Roy, import/domestic specialest replied 7 months ago

compression is no good. you have 3 cylinders with next to no compression.

put a couple of squirts of oil in the cylinders and re check compression

Roy

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Customer reply replied 7 months ago
also was told on a leak down of number 1 cylinder, had to rotate 1/4 turn past top dead and the it sealed.
Chevy Mechanic: Roy, import/domestic specialest replied 7 months ago

thats not right

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Customer reply replied 7 months ago
agreed.
Chevy Mechanic: Roy, import/domestic specialest replied 7 months ago

re check the timing marks

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Customer reply replied 7 months ago
he has to reinstall timing set tomorrow and will try ther oil trick and let you know.
Chevy Mechanic: Roy, import/domestic specialest replied 7 months ago

sounds good

Please take a moment and rate my service 3 stars or better. that is the only way the site will pay me for my efforts.

Roy

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