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Truck will not stay running - stall at idle?

Tiny
CJ MEDEVAC
  • MECHANIC
  • 11,004 POSTS
What about a little 'Love Tap" or two on the IAC when it's acting up?

The Medic
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Thursday, August 20th, 2020 AT 11:11 AM (Merged)
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,643 POSTS
I am wondering if you have a temperature sensor that is a little out of range. Here is a guide to show you want you are in for and the location of the sensor (below).

https://www.2carpros.com/articles/coolant-temperature-sensor-cts-replacement

Please let us know what happens.

Cheers, Ken
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Thursday, August 20th, 2020 AT 11:11 AM (Merged)
Tiny
KLAWS53
  • MEMBER
  • 2 POSTS
  • FORD RANGER
I have a 1993 ford ranger with the 2.3 4cyl. Engine, I drove it the other day and it started bogging down and eventually died now it is sitting in my yard useless. It will start every time I try to start it but will only run for 3-5 seconds then it dies again, if I try to give it gas after starting it, it just dies quicker. Any ideas on what it may be wrong?
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Thursday, August 20th, 2020 AT 11:11 AM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Try cleaning out the idle air control valve that don't work-check the fuel pressure and comeback
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Thursday, August 20th, 2020 AT 11:11 AM (Merged)
Tiny
FLYINGDIRT
  • MEMBER
  • 3 POSTS
Ken, Kept fooling with the ISC valve. Turns out that this was the source of the vacuum/ idle problem. Replaced ISC and it's working okay. Thanks for your help. Stretch
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Thursday, August 20th, 2020 AT 11:11 AM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Inbox : Message
From: klaws53
To: rasmataz
Posted: Mon Oct 01, 2007 4:32 pm
Subject: fuel pump
I was told that with having a high pressure fuel system, if I took the line loose before the fuel filter, the gas should shoot at least 3 feet from the line.I took the line loose but the fuel only trickled about 6-8 inches from the line. Does this sound like the fuel pump is bad?

_________________
kyle laws

You need to tie in a fuel pressure gauge-looking at is not a sure sign. Could be weak
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Thursday, August 20th, 2020 AT 11:11 AM (Merged)
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,643 POSTS
Nice work, we are here to help, please use 2CarPros anytime.

Cheers, Ken
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Thursday, August 20th, 2020 AT 11:11 AM (Merged)
Tiny
IRISH4LIFE
  • MEMBER
  • 1 POST
  • 1993 FORD RANGER
  • 6 CYL
  • 4WD
  • MANUAL
  • 111,500 MILES
Veh ran great. One morning I started it up and it bucked and jerked and had absolutely no power. Tried to run it hard but bogged down and died. Plugs keep fowling and will not idle or stay running. Have replaced t-stat, 3 sets of plugs, ign wires, O2 sensors and egr valve. Re-deploying Soon and would like to have a truck to leave with my family. Any help would be greatly appreciated. Thank you
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Thursday, August 20th, 2020 AT 11:11 AM (Merged)
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,750 POSTS
Have you checked fuel pump pressure? Has the check engine light come on? Have you checked the catalytic converter to make sure it isn't plugged?

Let me know.
Joe
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Thursday, August 20th, 2020 AT 11:11 AM (Merged)
Tiny
WINDY ENGLOF
  • MEMBER
  • 4 POSTS
  • 1992 FORD RANGER
It ideal searches and has high ideal on cold start and than stalls
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Thursday, August 20th, 2020 AT 11:12 AM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Clean out the idle air control valve and see what happens
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Thursday, August 20th, 2020 AT 11:12 AM (Merged)
Tiny
WINDY ENGLOF
  • MEMBER
  • 4 POSTS
I clean out and than replaced the idle air control valve and I replaced the mass air flow as well and both heat snors one on the thermostat and the other off the intake. Still no difference
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Thursday, August 20th, 2020 AT 11:12 AM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Go to this link: https://www.2carpros.com/articles/engine-idles-too-high
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Thursday, August 20th, 2020 AT 11:12 AM (Merged)
Tiny
WINDY ENGLOF
  • MEMBER
  • 4 POSTS
The high idle stops when its warm but than it idle searches the rpm seems to go up and down does this well under load as well could it be the EGR valve and where is it located if there is one
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Thursday, August 20th, 2020 AT 11:12 AM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Check right rear corner of the intake manifold near the firewall
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Thursday, August 20th, 2020 AT 11:12 AM (Merged)
Tiny
BLADEBOY2025
  • MEMBER
  • 3 POSTS
  • 1991 FORD RANGER
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 176,000 MILES
I have a 91 Ford ranger that will start and die. If I bounce the gas I can keep it running. The truck will run with the MAF disconnected, but I've replaced this and it still has the same issue. Any ideas?
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Thursday, August 20th, 2020 AT 11:12 AM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Check and test the Idle air bypass valve, PCV and EGR valves, BMAP sensor /throttle position sensor
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Thursday, August 20th, 2020 AT 11:12 AM (Merged)
Tiny
WINDY ENGLOF
  • MEMBER
  • 4 POSTS
The high idle stops when the truck warms up but than it drops really low and idle searches even well underload, could it be the EGR and is there one on my truck, I didnt find one.
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Thursday, August 20th, 2020 AT 11:12 AM (Merged)
Tiny
BLADEBOY2025
  • MEMBER
  • 3 POSTS
Those were my next guesses, I really need a chilton. Maybe I could just carb it, HA! EGR is under the manifold, so I think I will check for that last. Any place online I can get resistance and voltage specs for a 91 ranger?
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Thursday, August 20th, 2020 AT 11:12 AM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Check the fuel pressure with a gauge -also test the throttle position sensor-
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Thursday, August 20th, 2020 AT 11:12 AM (Merged)

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