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After replacing dist,coil,fuel pmp,injectors,pressure reg get

Customer Question
no spray out of injectors. JA...
After replacing dist,coil,fuel pmp,injectors,pressure reg get no spray out of injectors.
JA: Sometimes things that you think will be really complicated end up being easy to fix with GM. The GM Mechanic I'm going to connect you with knows all the tricks and shortcuts. Tell me a bit more about what's going on so he can help you best.
Customer: Distributor came apart while doing 65 mph. Tried to rebuild but ended up replacing. Once installed, got 0 spray out of injector. Once engine is started by priming, injectors work.
JA: Are you hoping to fix this yourself?
Customer: Yes
JA: Great! What have you tried so far?
Customer: Replaced pmp,injctrs,pressure reg. Trouble seems to be electrical
JA: Is there anything else important you think the GM Mechanic should know about your GM?
Customer: When bought,vehicles vac lines are not all being used, map sensor unplugged but s10 ran great.
JA: OK. Got it. I'm sending you to a secure page on JustAnswer so you can place the $5 fully-refundable deposit now. While you're filling out that form, I'll tell the GM Mechanic about your situation and then connect you two.
Submitted: 1 year ago.Category: GM
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Answered in 1 minute by:
5/1/2016
GM Mechanic: Gary, GMC Technician replied 1 year ago
Gary
Gary, GMC Technician
Category: GM
Satisfied Customers: 17,277
Experience: 15 years gm master tech/15 years ASE master tech
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can you tell me the year and engine size and model vehicle this is ?
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Customer reply replied 1 year ago
89 2.8 s10 tahoe
GM Mechanic: Gary, GMC Technician replied 1 year ago
if you unplug the fuel injector connector with the key ON does one terminal show 12 volts ?if so will the other blink a ground using your test light when cranking it over ?
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Customer reply replied 1 year ago
I have no tool to test for voltage
GM Mechanic: Gary, GMC Technician replied 1 year ago
no test light ?with the cap off and cranking it over is the rotor spinning ?
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Customer reply replied 1 year ago
I have test light. Am finding help to check rotor. It'll take a couple of mins.
GM Mechanic: Gary, GMC Technician replied 1 year ago
ok if the rotor spins then unplug the injector and connect your test light with the clip to the negative battery cable with the key ON does 1 terminal in the injector connector show 12 volts ?
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Customer reply replied 1 year ago
Rotor spins. Engine runs if TBI is hand primed
GM Mechanic: Gary, GMC Technician replied 1 year ago
then it will run fine once primed until you shut it off ?
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Customer reply replied 1 year ago
Yes
GM Mechanic: Gary, GMC Technician replied 1 year ago
if you have to hand prime it to run then these issues end up being a bad TPS sensor on the throttle body OR that is the wrong module in the distributorif it runs fine after its primed its usually one of those 2if you have any questions please ask as i do not get credit for my work until you rate us here at Justanswer
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Customer reply replied 1 year ago
Are we still in contact
GM Mechanic: Gary, GMC Technician replied 1 year ago
yes
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Customer reply replied 1 year ago
What is tps?
Customer reply replied 1 year ago
Also, bought dist. from extremely reliable store owner. Knew more about my truck than all others I spoke with. How likely would it be that module is incorrect?
GM Mechanic: sprinkles08, ASE Certified Technician replied 1 year ago
sprinkles08
sprinkles08, ASE Certified Technician
Category: GM
Satisfied Customers: 23,261
Experience: ASE Master and Advanced level certified. Factory trained with 17 years dealership experience
Verified
Hello and welcome to JustAnswer!Do you have a fuel pressure gauge?Have you checked for spark at the time it will not start?
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sprinkles08
sprinkles08
sprinkles08, ASE Certified Technician
Category: GM
Satisfied Customers: 23,261
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Experience: ASE Master and Advanced level certified. Factory trained with 17 years dealership experience

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