diagnostic tools



diagnostic tools

Postby grumpyvette » November 26th, 2008, 12:08 am

you really can,t be effectively at playing mr-fix-it with out the correct tools
when ever you get into unexplained symptoms the answer remains the same....in every case,.... you drop back to the basics and do a few tests, get out a multi meter and verify every fuse is good, and you have 13 volts at the battery and youve got at least a 1/2 tank of fresh fuel, before you start chasing your tail, thinking about more complicated problems
find the cause, you isolate, each function or system or malfunction to its related components then test, each individually, use of the shop manual is almost mandatory


http://www.centuryperformance.com/tunin ... g-148.html


Image
vacuum gauges must be connected to manifold vacuum

http://www.secondchancegarage.com/public/186.cfm

http://www.corvette-101.com/
(info on left border)

heres a couple darn good links you need to read thru, lets have some additional info or comments and questions??


especially on the more modern cars that are computer controlled, the days of effectively tuning by ear and vacuum gauge and engine sound only went out with carbs
you need a few basic tools, now the list will vary, but you can,t get by by guessing, you neet to know and test now that sensors and CPUs control engine function
heres some basic tools

be sure to get the specific manuals your car and EFI system and ignition system,require FIRST


https://www.etoolcart.com/index.asp?PageAction=VIEWPROD&ProdID=4047


while it appears to be expensive, it saves you a good deal of money in the long run compared to dealing with the local chevy dealers mechanics, and makes diagnostics far faster, I bought this for the shop and it seems to be a good investment, since between a dealers diagnostics and swapping parts that don,t need changing you could easily spend close to that on just a few problems getting sorted out
youll also want a few basic diagnostic tools

https://www.etoolcart.com/index.asp?PageAction=VIEWPROD&ProdID=4417

https://www.etoolcart.com/index.asp?PageAction=VIEWPROD&ProdID=6688

https://www.etoolcart.com/index.asp?PageAction=VIEWPROD&ProdID=2597

https://www.etoolcart.com/index.asp?PageAction=VIEWPROD&ProdID=8108

and a book or two

http://www.amazon.com/gp/product/0837608...ce&n=283155

http://www.amazon.com/gp/product/0879387...ce&n=283155

http://www.amazon.com/gp/product/0760304...ce&n=283155

in no time youll be the area wizz kid on chevy injection diagnostics
IF YOU CAN,T SMOKE THE TIRES AT WILL,FROM A 60 MPH ROLLING START YOUR ENGINE NEEDS MORE WORK!!"!
IF YOU CAN , YOU NEED BETTER TIRES AND YOUR SUSPENSION NEEDS MORE WORK!!
grumpyvette

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Re: diagnostic tools

Postby grumpyvette » December 2nd, 2008, 9:03 pm

Here are some instructionals and tutorials on how to use a VOM

http://www.acmehowto.com/howto/homemain ... eruse2.php

http://blip.tv/file/138422

http://tangentsoft.net/elec/movies/tt06.html


http://www.kpsec.freeuk.com/multimtr.htm


http://www.doctronics.co.uk/meter.htm

1.To do any logical trouble shooting on electrical issues you must have a good wiring diagram of the car.
(YOULL NEED THAT SHOP MANUAL AND A V.O.M. METER)



http://www.helminc.com/helm/welcome_sel ... 8FHMHFE4J9

2. remove all fuses.
3. place an amp meter in the positive battery line.
4. replace fuses one at a time.
(replace one record the current then remove the fuse, and proceed to the next fuse and circuit.)

5. now with this information you must isolate which circuits should have caused or continute to cause the electrical drain, and which should or are not a problem.
6. once identified and isolated the circuit can be examined isolated from others and fixed, with the shop manual, and A V.O.M. METER.

looking for a problem of this type is like looking for a needle in a hay stack unless you use a procedure like this and it will overwhelm you.
IF YOU CAN,T SMOKE THE TIRES AT WILL,FROM A 60 MPH ROLLING START YOUR ENGINE NEEDS MORE WORK!!"!
IF YOU CAN , YOU NEED BETTER TIRES AND YOUR SUSPENSION NEEDS MORE WORK!!
grumpyvette

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Posts: 14105
Joined: September 14th, 2008, 1:40 pm
Location: florida


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