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xsvectOR
xsvectOR, ASE Certified Technician
Category: GMC
Satisfied Customers: 16138
Experience:  car expert!
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Gmc 2006 will not start will turn over ***** ***** here, yes

Customer Question

gmc 2006 will not start will turn over ***** ***** here
JA: Thanks. Can you give me any more details about your issue?
Customer: yes i had an abs light on my mechanic told me to clean the 2 grounds just behind the left fron wheel i have a pocket scanner and there are no codes
JA: OK got it. Last thing — GMC Mechanics generally expect a deposit of about $18 to help with your type of question (you only pay if satisfied). Now I'm going to take you to a page to place a secure deposit with JustAnswer. Don't worry, this chat is saved. After that, we will finish helping you.
Submitted: 1 year ago.
Category: GMC
Expert:  xsvectOR replied 1 year ago.

is the abs light still on? does your scan tool have abs functions?

Customer: replied 1 year ago.
it has abs function and yes code is off
Expert:  xsvectOR replied 1 year ago.

so the abs light Is off now?

Customer: replied 1 year ago.
Customer: replied 1 year ago.
truck will turn over
will not start
Expert:  xsvectOR replied 1 year ago.

ok are the brakes acting normal?

Customer: replied 1 year ago.
dont know the truck will not start
Customer: replied 1 year ago.
thats the issue it will not fire
Expert:  xsvectOR replied 1 year ago.

is the battery dead?

Customer: replied 1 year ago.
no
Customer: replied 1 year ago.
it will turn over
Expert:  xsvectOR replied 1 year ago.

is the theft or security light on?

Customer: replied 1 year ago.
not that i know of
Customer: replied 1 year ago.
dont know what it is
Expert:  xsvectOR replied 1 year ago.

it would look like a padlock on the instrument panel

Customer: replied 1 year ago.
when will it come on?
Expert:  xsvectOR replied 1 year ago.

when cranking

Customer: replied 1 year ago.
can u wait a sec?
Customer: replied 1 year ago.
ill go out and try it
Expert:  xsvectOR replied 1 year ago.

k

Customer: replied 1 year ago.
came on then went off
Customer: replied 1 year ago.
u there?
Expert:  xsvectOR replied 1 year ago.

We will have to pinpoint what the engine is missing.

Spark

Fuel

Compression

All three of these are tested when the engine is being cranked over. There are two way of checking for fuel. Fuel pressure and fuel trigger. Both are very important and must be present for the car to start. Fuel pressure is self explanatory. You just hook up the gage and see what the reading is. Fuel trigger is check with a noid light. The injector gets unplugged and the noid light gets plugged in to the injector clip. With the engine cranking over, this light must blink. This is the signal to the injectors from the computer. You can have all the fuel pressure in the world, but it wont matter if the injector is not pulsing gas into the cylinder like it should! Compression tester, spark tester, fuel pressure gage and noid light are all accessible at your local auto store. All three tests play a very important part in diagnosing a no start condition.

Customer: replied 1 year ago.
why did this ocur suddenly?right after i cleaned the grounds?
Expert:  xsvectOR replied 1 year ago.

sound like a coincidence should have had no effect

Customer: replied 1 year ago.
not much of a help
Customer: replied 1 year ago.
bye
Expert:  xsvectOR replied 1 year ago.

well we need to determine what its missing to start...fire fuel or air.. cleaned a wheel speed sensor ground will not effect engine driveability

Customer: replied 1 year ago.
the ground i cleaned was behind the left front wheel
Expert:  xsvectOR replied 1 year ago.

at the wheel speed sensor? can you attach a image? can you hear the fuel pump engage?

Customer: replied 1 year ago.
on thr frame
Customer: replied 1 year ago.
what does the fuel pump sound like engaged?
Expert:  xsvectOR replied 1 year ago.

a buzz for the first 3 seconds when the key is turned on usually its best to have a second person...have them put there ear to the gas fill nozzle and listen

Customer: replied 1 year ago.
fuel gage reads
Expert:  xsvectOR replied 1 year ago.

that's ok but can you hear the pump energize?

Customer: replied 1 year ago.
start position?
or actually try to start?
Expert:  xsvectOR replied 1 year ago.

stat position

Customer: replied 1 year ago.
not actuallt start?
Customer: replied 1 year ago.
brb
Expert:  xsvectOR replied 1 year ago.

k

Customer: replied 1 year ago.
made a ticking noise
Customer: replied 1 year ago.
not a hum
Expert:  xsvectOR replied 1 year ago.

that's odd no 3 second buzz/hum

Customer: replied 1 year ago.
no tick tick noise
Expert:  xsvectOR replied 1 year ago.

I would check and verify the fuel pump fuse...next I would check fuel pressure ..sounds like kit may have failed

Customer: replied 1 year ago.
wheres the fuel pum fuze?
Expert:  xsvectOR replied 1 year ago.

should be in the under hood fuse box, the lid of the box will label them

Customer: replied 1 year ago.
just found a relay
Expert:  xsvectOR replied 1 year ago.

what model and motor size

Customer: replied 1 year ago.
small v8
Expert:  xsvectOR replied 1 year ago.

all I know is 2006 gmc small v8 what model gmc ?

Customer: replied 1 year ago.
took the relay out and cleaned with eloctronic cleane
Expert:  xsvectOR replied 1 year ago.

did that help?