hard starts - Team Camaro Tech
Troubleshooting Diagnosing problems done here.

LinkBack Thread Tools Display Modes
post #1 of 3 (permalink) Old Jun 7th, 04, 08:08 PM Thread Starter
Join Date: Jun 2004
Location: rohnert park, ca. 94928
Posts: 1

hi, i am new to this forum and am in need of your help. i just bought a 94 z-28. it cranks over many times before it will start. I hooked a fuel pressure gauge up to the fuel rail and turned the key to the on position and the manuel says it should hold at about 40. mine does not hold pressure. it goes to 40 then drops to zero. when i turn the key on the fuel pump runs for about 3 seconds which is normal. gauge hits 40 then jumps back to zero. when car does start it holds steady pressure at about 39-40. ive allready changed the fuel filter. could this be fuel pressure regulator. please help. i have to get this fixed. thank you
ryan henriksen is offline  
Sponsored Links
post #2 of 3 (permalink) Old Jun 7th, 04, 08:15 PM
Senior Tech
ZZ_430's Avatar
Join Date: May 2001
Location: Houston, Texas
Posts: 4,491

Pinch off the return line and do that test again.

If the pressure still doesn't hold, the regulator is bad, or, (not as likely) a leaking injector(s) problem.

If the pressure holds, it's a bad fuel pump.

[ 06-07-2004, 11:33 PM: Message edited by: ZZ430DropTop67RS ]

Don ~ TC Member #15 ~
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Don't mess with Texas!
ZZ_430 is offline  
post #3 of 3 (permalink) Old Jun 8th, 04, 01:51 PM
Senior Tech
Join Date: Mar 2002
Location: Austin, TX, USA
Posts: 5,277

Yup, check the regulator with the pinch test as ZZ430* suggest. Also wanted to add that a friend of mine had a similar problem. Also, his mixture went rich. He pulled the plug and found one fuel fowled. Turned out an injector was leaking.

68 Coupe, 350 w/ Edelbrock Performer RPM heads, cam, intake, 700R4, Dave's small body HEI
dnult is offline  
Sponsored Links

Quick Reply

Register Now

In order to be able to post messages on the Team Camaro Tech forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address.
NOTE we receive a lot of registrations with bad email addresses. IF you do not receive your confirmation email you will not be able to post. contact support and we will try and help.
Be sure you enter a valid email address and check your spam folder as well.

Email Address:


Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

Posting Rules  
You may post new threads
You may 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
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome