96 suburban cold start issue - Car Troubleshooting


	Auto Repair Home	SEARCH POSTS	WHO'S ONLINE	LOG IN

Automotive Repair

Car Troubleshooting Topics
  Car Troubleshooting
  Engine Troubleshooting
  Engine Fault Codes
  Electrical and Wiring
  Transmission Problems

Car Repair Topics
  Car Making Noises
  Car Stereo Repair
  Heating or AC Issues
  Motorcycles and ATVs
  Tricks of the Trade
  Truck Repair Advice

Site Options:
  Login
  Sign up here!

Latest Forum Post

1989 toyota pickup 3.0 crank no start

I have a 1989 toyota pickup 3.0 crank no...

Strut spring orientation and strut mount tension nut

2017 Nissan rogue awd 2.5 L Put in Monro...

Transmission stuck in part, I have tried everything

So I'm working on my elderly fathers 201...

2017 dodge journey LED headlights on/off randomly

Year of vehicle 2017 Make of vehicle dod...

Kia Soul starter replacement issues!

Okay so my car is a 2010 Kia soul 2.0 en...

Please Help - Knock sound & engine fail

Hi all, Hoping to get some insight and ...

multiple warning lights

2013 GMC Terrain 130,000 miles 4 cylinde...

03 alero no low speed blower

Good day everyone, I have a 2003 Olds a...

04 Chevy 2500hd tail light issues

Help!!! I have changed my combo switch...

1999 Grand Caravan Sport not starting.

Hi. I'm new here. I hope someone can hel...

96 suburban cold start issue

Sign up here!

Search for (search options)

Auto Repair Home>> Automotive Repair>> Car Troubleshooting

tinjet
New User

Jun 30, 2010, 5:04 PM

Post #1 of 4 (2266 views)

96 suburban cold start issue	Sign In

I am trying to help a friend with her 1996 Suburban with a 5.7 liter engine. The car will not start when it is completely cold (i.e. overnight) unless you give it a shot of starting fluid. Once it starts, it will continue to start fine unless it is again, completely cold. Any ideas?

Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Jun 30, 2010, 6:46 PM

Post #2 of 4 (2262 views)

Re: 96 suburban cold start issue	Sign In

That's a typical symptom of a bad fuel pump on a Vortec engine. That's a high pressure system and it requires a minimum of 55 PSI to run and starting cold is when the problem shows first.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.

tinjet
New User

Jun 30, 2010, 7:47 PM

Post #3 of 4 (2255 views)

Re: 96 suburban cold start issue	Sign In

Thanks for the info...is there a way to test the line pressure? I,m guessing that the the pump is in the tank and therefore a pain to replace.

Sidom
Veteran / Moderator
Sidom profile image

Jun 30, 2010, 7:53 PM

Post #4 of 4 (2254 views)

Re: 96 suburban cold start issue	Sign In

The best way is to use a fuel pressure gauge. If you don't have a gauge you could try cycling the key from off to on about 4 or 5 times (leaving it in the on position for about 4 seconds each time), then try to start it. If it fires right up you are in the 85 to 90% range of a bad fuel pump.

(This post was edited by Sidom on Jun 30, 2010, 7:54 PM)

Search for (options) Privacy Sitemap