|
|
rescueranch
New User
Nov 8, 2011, 6:17 PM
Post #1 of 4
(1929 views)
|
01 chev 1500 silverdo 2wheel drive vortec 8 cyl;;;;drivin at 60/65 engine dies wont re start towed home cranking seams like theres tenshion well no firerun animal rescue here n shortage of a truck aint real fun 
|
|
| |
|
|
Hammer Time
Ultimate Carjunky
/ Moderator
Nov 8, 2011, 6:40 PM
Post #2 of 4
(1915 views)
|
All "crank, no start" conditions are approached in the same way. Every engine requires certain functions to be able to run. Some of these functions rely on specific components to work and some components are part of more than one function so it is important to see the whole picture to be able to conclude anything about what may have failed. Also, these functions can ONLY be tested during the failure. Any other time and they will simply test good because the problem isn't present at the moment.
If you approach this in any other way, you are merely guessing and that only serves to replace unnecessary parts and wastes money.
Every engine requires spark, fuel and compression to run. That's what we have to look for.
These are the basics that need to be tested and will give us the info required to isolate a cause.
1) Test for spark at the plug end of the wire using a spark tester. If none found, check for power supply on the + terminal of the coil with the key on.
2) Test for injector pulse using a small bulb called a noid light. If none found, check for power supply at one side of the injector with the key on.
3) Use a fuel pressure gauge to test for correct fuel pressure, also noticing if the pressure holds when key is shut off.
4) If all of these things check good, then you would need to do a complete compression test.
Once you have determined which of these functions has dropped out,
you will know which system is having the problem.
PS, I have deleted your other post. Please don't post duplicates. The same people see all posts.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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.
(This post was edited by Hammer Time on Nov 8, 2011, 6:41 PM)
|
|
| |
|
|
Sidom
Veteran
/ Moderator
Nov 8, 2011, 7:35 PM
Post #3 of 4
(1887 views)
|
On this one....I would check fuel pressure 1st on the list...
Put a gauge on it (obviously make sure you have gas....any doubt at all & put in a couple of gallons) & check pressure.
If it's zero, get a block of wood or something dull & heavy, have a helper crank the engine while you pound on the tank where the pump sits....If this gets it to start, you have a bad pump.
|
|
| |
|
|
Hammer Time
Ultimate Carjunky
/ Moderator
Nov 8, 2011, 7:41 PM
Post #4 of 4
(1879 views)
|
To add to that. It takes 55PSI or more to make that truck run. Any less and you have a problem.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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.
|
|
| |
|
Auto Repair Home
SEARCH
WHO'S 
LOG 
1989 toyota pickup 3.0 crank no start
Strut spring orientation and strut mount tension nut
