Alaska 4x4 Network

Go Back   Alaska 4x4 Network > Alaska 4x4 Network Forums > 4x4 Vehicle (car, truck, etc)

Reply
 
Thread Tools Display Modes
Old 03-16-2016, 02:32 PM   #1
godchild19
Registered Member
 
godchild19's Avatar
 
Join Date: Mar 2006
Location: nikiski, alaska
Posts: 340
godchild19 is on a distinguished road
Default 88 tbi suburban problem

350 700r4 4x4 np208 or 241 cant remember.

For some reason when its warmer out its harder to start. When its cold it starts right up and stays running while warming up. In the summer when its hotter alot of times i have to hold the gas to start or it will fire and die. Then it keeps dying until warmed up.
godchild19 is offline   Reply With Quote
Old 03-16-2016, 05:38 PM   #2
chris112lee
Registered Member
 
chris112lee's Avatar
 
Join Date: Jan 2005
Location: Anchorage
Posts: 3,500
chris112lee is on a distinguished road
Default Re: 88 tbi suburban problem

First guess would be fuel pump. Can you see the injectors spraying when cranking?
__________________
I dont wheel anymore. I think about it. I dream about. And I'm still awesome at it
chris112lee is offline   Reply With Quote
Old 03-16-2016, 07:45 PM   #3
84Shortbed
Registered Member
 
84Shortbed's Avatar
 
Join Date: Apr 2007
Location: wasilla / kgb
Posts: 1,512
84Shortbed has disabled reputation
Default Re: 88 tbi suburban problem

Could be coolant temp sensor
__________________
73 k5. 63's and 52's. Tbi 350/465/205 d60/14b. 4.88's/detroits 18.4x16.1s full hydro
84Shortbed is offline   Reply With Quote
Old 03-17-2016, 11:30 AM   #4
godchild19
Registered Member
 
godchild19's Avatar
 
Join Date: Mar 2006
Location: nikiski, alaska
Posts: 340
godchild19 is on a distinguished road
Default Re: 88 tbi suburban problem

Oh yeah and forgot to mention it has high vacuum when i loosen the gas cap everytime i get fuel. Can really hear it when i loosen it.

Disconnected hoses at the canister under the hood but didnt hear any vacuum there. Removed the gas cap after removing the hoses and there was still vacuum.
godchild19 is offline   Reply With Quote
Old 03-17-2016, 11:34 AM   #5
godchild19
Registered Member
 
godchild19's Avatar
 
Join Date: Mar 2006
Location: nikiski, alaska
Posts: 340
godchild19 is on a distinguished road
Default Re: 88 tbi suburban problem

I already put a new temp sensor a couple summers ago. But i did put teflon tape on the threads if that makes a difference. Not sure if it grounds thru the threads or not. Didnt think it did since the intake is aluminum and the sensor is brass but not sure.

It also has a throttle body spacer. Looks like a Non metel type. Chance of warping or deforming cause of years of heat and cold?

Thought about removing it and seeing what happens in case its leaking from mounting surfaces.

Last edited by godchild19; 03-17-2016 at 01:25 PM.
godchild19 is offline   Reply With Quote
Old 03-17-2016, 07:51 PM   #6
g202johnson
Registered Member
 
g202johnson's Avatar
 
Join Date: Jun 2012
Posts: 150
g202johnson has disabled reputation
Default Re: 88 tbi suburban problem

If you suspect a leak spray around it with starter fluid and listen for a rpm change.
g202johnson is offline   Reply With Quote
Old 03-18-2016, 02:16 PM   #7
CopperTopToy
Registered Member
 
CopperTopToy's Avatar
 
Join Date: Jul 2005
Location: Anchorage, AK
Posts: 745
CopperTopToy is on a distinguished road
Default Re: 88 tbi suburban problem

the coolant sensor does it have 1 or 2 wires? if 1 wire, remove the Teflon tape and retry.
the vacuum at the gas cap maybe indicating the vent line is plugged.
__________________
- Nulla tenaci invia estvia -
For the persistent, no road is impassable.

When I die, I want to go peacefully like my Grandfather did, in his sleep -- not screaming, like the passengers in his car.

Give a man a match, and he'll be warm for a minute, but set him on fire, and he'll be warm for the rest of his life.

80' Toyota Loonnggbed 80% stock and improving all the time
8274 Warn on CowCatcher bumper. New rear car smasher
CopperTopToy is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -9. The time now is 04:33 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
Copyright Alaska 4x4 Network