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Tool Hut
Tool Hut, ASE Certified Technician
Category: Cadillac
Satisfied Customers: 494
Experience:  Owner of a mobile diagnostics company assisting auto technicians with difficult vehicles
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I have a Cadillac Dts 07 it will crank but not start when I

Customer Question

I have a Cadillac Dts 07 it will crank but not start when I turn the key start turns over and keeps turning over even when I let key go it stops after a few seconds is it my crank sensors or the Itnitoin switch or starter
Submitted: 10 months ago.
Category: Cadillac
Expert:  Tool Hut replied 10 months ago.

Hi, My Name is ***** ***** for posting your question to just answer. I am a independent contractor for just answer, and ASE Certified Master Auto Technician with 20 years experience. I am confident we can resolve your problem together.Please remember I don't know your skill level. I can't see, smell, hear, or touch the vehicle. It may take a few back and forth replies to get to a satisfactory resolution.There will probably be some equipment needed for a proper diagnosis. If you are not comfortable with this or do not have any test equipment please let me know ASAP. I also try to give all of the information you may need expecting a positive rating. I am not compensated for my time until you leave a positive rating. Your rating should be based on the service you received.

Do you have any test equipment?

Spark tester

Injector noid light

Scanner

Expert:  Tool Hut replied 10 months ago.

fuel pressure gauge

Customer: replied 10 months ago.
No I only have scanner for check engine light but it is giving no codes
Expert:  Tool Hut replied 10 months ago.

do you have a code reader or a scanner with data?

Customer: replied 10 months ago.
Code reader
Expert:  Tool Hut replied 10 months ago.
That won't help much. Without any test equipment I am unsure how I can help. If I say to replace any part is will be a complete guess.
Customer: replied 10 months ago.
What would your guest be
Expert:  Tool Hut replied 10 months ago.
Fuel pump
Crank sensor
PCMWith some simple tests I could give you better direction.
Customer: replied 10 months ago.
I know it's not the fuel pump I have gas In the fuel injector rail
Expert:  Tool Hut replied 10 months ago.
but how much pressure?
Customer: replied 10 months ago.
Looks like a lot shoot out far
Expert:  Tool Hut replied 10 months ago.
It is very common to have fuel at an insufficient pressure for injectors to open
Customer: replied 10 months ago.
oh ok
Customer: replied 10 months ago.
Isn't there a way to pour gas into the motor to see if it will crank
Expert:  Tool Hut replied 10 months ago.
Problem is you could blow up your intake if it back fires. Not recommended
Customer: replied 10 months ago.
Oh OK
Expert:  Tool Hut replied 10 months ago.

If you can get a basic scanner and some other test equipment I can assist further. Sears sells some basic tools reasonably priced

Customer: replied 10 months ago.
What tools do you recommend
Expert:  Tool Hut replied 10 months ago.

If you intend to do your own work here are some basic testing tools. I am not affiliated with any of these companies or products.

A good basic scanner make sure you get the GM package https://www.scantool.net/

Spark tester noid light kit http://www.amazon.com/Tool-Aid-36350--Line-Checker/dp/B000VULAQC/ref=sr_1_1?ie=UTF8&qid=1454246996&sr=8-1&keywords=spark+tester+noid+light

Fuel pressure gauge set http://www.amazon.com/PMD-Products%C2%AE-Injection-Pressure-Tester/dp/B0053NZXQA/ref=sr_1_12?s=automotive&ie=UTF8&qid=1454247059&sr=1-12&keywords=fuel+pressure+gauge

Customer: replied 10 months ago.
Where are the crank sensor located
Expert:  Tool Hut replied 10 months ago.

There are 2 on front side of engine above starter

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