Chevy Suburban, 138,000 miles will not start

jcmnh
90

Asked by Nov 12, 2012 at 05:19 PM about the 1999 Chevrolet Suburban K1500 LT 4WD

Question type: Maintenance & Repair

It just stopped running at a red light. Will not start, but sounds like it wants to. Starter is fine, alternator is fine, battery
is brand new, plugs are brand new, not the ignition modulator, rotor and distributor cap are fine, coilpak is fine, getting
white spark, sending unit is working, getting fuel pressure, timing chain is fine, we are stumped......

21 Answers

joef
5,085

Could be a bad idle air controler. They fail like that sometimes.

1 out of 1 people think this is helpful.
jcmnh
90

Thank you, I forgot to mention that until this happened the truck was running very smoothly, no issues at all....

John Saffrahn
26,315

How much fuel pressure? Are the injectors receiving a pulse?

1 out of 1 people think this is helpful.
jcmnh
90

fuel pressure is at 62, we think it may be the throttle position sensor- got a code for it

John Saffrahn
26,315

Are the injectors receiving a pulse?

jcmnh
90

They are receiving pulse. CHecked fuel pressure with a fuel pressure guage- we have fuel pressure, sending unit is working, spraying ether under the hood does not allow the engine to start even for a second. The throttle position sensor was not the problem- that was the only thing that came up on the computer. All fuses are ok. 6 mechanics are stumped, And in the meantime I have had no vehicle for 15 days.....

John Saffrahn
26,315

What is the compression?

jcmnh
90

I don't know, the truck belongs to me, I am relaying what my mechanic is telling me but Ron is not here right now. Are you talking about the compression with the injectors? Like I might need to rebuild the motor??

John Saffrahn
26,315

Compression of the cylinders.

jcmnh
90

He has not done that, but my truck has not been riding rough at all. Engine is quiet, accelerates smoothly, no bucking, no skipping, nothing that I have noticed at all. The only thing is the serpentine belt makes noise if it is wet, all the pulleys have been changed and the belt is the shorter one of the two for a suburban so it fits tightly enough- edges are not cracked or frayed. I have never sprayed anything on it, either...

John Saffrahn
26,315

Something is being overlooked, air and fuel in the correct mixture is compressed then ignited. Then your engine will run. What is the fuel pressure?

jcmnh
90

62

jcmnh
90

This is so frustrating and everyone is stumped. Unfortunately, I don't have unlimited funds to keep on eliminating issues after changing parts.....

John Saffrahn
26,315

Pull the spider injector out and make sure its working properly is the direction I would go in right now.

John Saffrahn
26,315

Also 62psi is high does it come down while cranking?

jcmnh
90

OK! I will tell him to do that..... thank you....

1 out of 1 people think this is helpful.
jcmnh
90

I will ask about the 62psi when he calls.....

rcrowsnest
0

did you check the main fuse bank on the drivers side under the hood. There is an ignition fuse under there that if it blows the entire engine shuts down.

Bradley Shelledy
1,145

Will it start with starter fluid?

noniko
0

So what is answer???

jcmnh
90

Because there was spark nobody thought it was the ignition coil, when the truck was put on the diagnostic machine, it still did not show that it could be it. The mechanic just decided to try it and that was all it was. A simple ignition coil.....

5 out of 5 people think this is helpful.

Your Answer

Add photo

Related Questions

  • Chevy Suburban 2009 5.3 starts on the 2nd gear 4 answers

    Chevy Suburban 2009 5.3 starts on the 2nd gear when on D, even with M it starts also from 2 instead from 1. any idea where to start from ?

    2009 Chevrolet Suburban LTZ 1500 4WD

    -

    Maintenance & Repair

  • 2004 Chevy Suburban 2 answers

    My Chevy Suburban 2004 5.3 liter half ton 4wd speed thermometer is not working and is not shifting I change the transmission is still the same problem please help

    2004 Chevrolet Suburban 1500

    -

    Maintenance & Repair

  • Suburban Transmission Problems 17 answers

    Folks: Need some advice from the people much smarter than me when it comes to vehicles. We have a 2004 Suburban with 122K miles on it. This has been a fantastic vehicle, one I'm hoping to hold onto...

    2004 Chevrolet Suburban LS 2500

    -

    Maintenance & Repair

  • 98 Suburban will not start 5 answers

    I have a 98 Chevy Suburban and I had some starting issues at first. Replaced the starter and everything seemed to be working fine until i used the automatic start and the car made a screaming noise ...

    1998 Chevrolet Suburban

    -

    Maintenance & Repair

  • Price of Suburban 4 answers

    found a 2013 suburban LT with 8000 miles..leather, DVD, sunroof..dealership is asking 38900.00 Is this a good price and if so what could be some reason they are selling for such a low price when its...

    2013 Chevrolet Suburban LT 1500

    -

    Shopping & Pricing

Suburban
Looking for a Used Suburban in your area?
CarGurus has 21,703 nationwide Suburban listings starting at $2,490.
ZIP:

Search Chevrolet Suburban Questions

Chevrolet Suburban Experts

#1 Eric Fritz
Eric Fritz
Reputation 740
#2 Andrew Olsen
Andrew Olsen
Reputation 590
#3 John Saffrahn
John Saffrahn
Reputation 540
View All

Related Models For Sale

Used GMC Yukon XL"
148 Great Deals out of 6,687 listings starting at $1,275
Used Chevrolet Tahoe"
567 Great Deals out of 31,223 listings starting at $1,500
Used Ford Expedition"
354 Great Deals out of 21,211 listings starting at $1,995
Used GMC Yukon"
187 Great Deals out of 9,782 listings starting at $2,495
Used GMC Yukon Denali"
133 Great Deals out of 8,316 listings starting at $2,300
Used Cadillac Escalade"
194 Great Deals out of 8,485 listings starting at $1,998
Used Chevrolet Silverado 1500"
1,744 Great Deals out of 126,522 listings starting at $2,000
Used GMC Suburban"
236 listings starting at $2,550
Used Lincoln Navigator"
91 Great Deals out of 6,300 listings starting at $3,500
Used Ford Excursion"
9 Great Deals out of 711 listings starting at $4,900
Used Ford F-150"
2,435 Great Deals out of 196,738 listings starting at $1,595

Used Cars For Sale

2016 Chevrolet Suburban For Sale
5 Great Deals out of 9,944 listings starting at $43,983
2015 Chevrolet Suburban For Sale
119 Great Deals out of 3,017 listings starting at $36,777
2014 Chevrolet Suburban For Sale
17 Great Deals out of 463 listings starting at $25,495
2013 Chevrolet Suburban For Sale
21 Great Deals out of 611 listings starting at $23,396
2012 Chevrolet Suburban For Sale
24 Great Deals out of 625 listings starting at $16,788