Tahoe & Suburban The power, space, and brutal towing ability make the Tahoe and its longer sibling, the Suburban, arguably the best full size SUV's on the market today.

2013 Chevrolet Suburban
Platform: GMT 400, 800, 900

Suburban won't start!

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Old Sep 23, 2017 | 4:32 AM
  #11  
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Thanks! I got it to start after a while by turning it over and feathering the gas. Definitely sounds like it's only running on 6. I'll have to check the injectors this week sometime.
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Old Sep 25, 2017 | 5:50 PM
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Either a PCM issue or hardware.. Good Call Shark

Running on 6 should help your fuel economy. >.<

Last edited by Matt B; Sep 25, 2017 at 5:53 PM.
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Old Sep 29, 2017 | 12:01 PM
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changed the injectors. only running on 3 cyl now! even better mpgs. so I changed the injectors again and now it won't start at all again. I don't get it. I don't think it's really a injector issue
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Old Sep 29, 2017 | 6:17 PM
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Test the compression? Might be valve or piston related.. could even be timing
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Old Sep 30, 2017 | 4:14 PM
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haven't tested compression. but it didn't have a issue before. I'm almost afraid to check
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Old Sep 30, 2017 | 4:39 PM
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compression is 150ish on all 8
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Old Oct 2, 2017 | 10:19 AM
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We're chasing our tails here. Sorry I haven't been more help.
Fuel-- Filter: check. Pump: check. Pressure Regulator? Pull the vacuum line and check for gas. diaphragm could be toast..
O2 sensor? Could be doing a terrible job without throwing a code. $100.00 to replace all 4 - if you can get 'em out they can be 'cleaned' by soak in gas overnight.
MAF senor- Pop it out and hit it with some carb & choke or special MAF cleaner..

My boss just asked me if I want to buy her 03 burb.. 194,000mi $2500.. Thinking about selling the Subaru so I can go through all this with ya. Any takers?
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Old Oct 2, 2017 | 11:16 AM
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Originally Posted by Matt B
We're chasing our tails here. Sorry I haven't been more help.
Fuel-- Filter: check. Pump: check. Pressure Regulator? Pull the vacuum line and check for gas. diaphragm could be toast..
O2 sensor? Could be doing a terrible job without throwing a code. $100.00 to replace all 4 - if you can get 'em out they can be 'cleaned' by soak in gas overnight.
MAF senor- Pop it out and hit it with some carb & choke or special MAF cleaner..

My boss just asked me if I want to buy her 03 burb.. 194,000mi $2500.. Thinking about selling the Subaru so I can go through all this with ya. Any takers?
that's a excellent idea! I wouldn't hesitate for a second on that's deal. I was thinking maybe the crank sensor is bad and it's not firing right? I'm sick of throwing money at this thing!
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