95 Roadmaster problems - Chevy Impala SS Forum
LinkBack Thread Tools Display Modes
post #1 of 3 (permalink) Old 08-21-2013, 01:16 PM Thread Starter
Junior Member
Join Date: Mar 2010
Posts: 5
95 Roadmaster problems

I have a 95 Roadmaster. It won't start on the first crank in the morning anymore, but it starts right up on the second crank (Had the fuel pressure checked and was told it's fine). It fumbles a little bit when I give it gas until it warms up for a couple minutes. I replaced the Coolant Temperature sensor by the water pump and it didn't help, but that code is still coming up. I'm getting Codes 14 and 15 which deal with the coolant temperature sensor and Code 18 which says "injector circuits"? I just ran the codes today b/c it stalled out on me pulling into my driveway, which never happened before. What does this mean and how do I fix it? If anyone can shed light on any of these issues or problems I'd appreciate it. Thanks.
Krayzie949 is offline  
Sponsored Links
post #2 of 3 (permalink) Old 08-21-2013, 01:42 PM
Goldmaster's Avatar
Join Date: Nov 2006
Location: Warren, MI
Posts: 9,682
When you know it's gonna give you a hard start, try turning the key on and off 3 times before actually starting it. If it fires right up, then you have fuel pressure bleeding off. I know you said fuel pressure checked fine, but once the car is running it will be fine. There is an anti-drain back valve in the fuel pump that is supposed to prevent pressure from rapidly dropping, if it's gone bad, you will get symptoms like you describe. The only way to fix it is to replace the pump. I drove a car with this issue for over a year before I got around to replacing the fuel pump. One way to confirm is hook a gauge up, turn the key on
(but don't start) and see if it holds at 40PSI or better for at least 10 minutes. If it drops off right away, then it's likely the drain back valve in the pump.

For the coolant sensor codes, check the plug and wiring (at the water pump) and make sure everything is in good shape. It's often that stuff and not the actual sensor causing the issue.

Also, for future reference, for engine/drivetrain related problems, it's best to use the other sections. The engine maintenance section gets a lot more traffic than the roadmaster section and you'll get more responses. Only post in this section if it is something roadmaster specific.

Last edited by Goldmaster; 08-21-2013 at 01:48 PM.
Goldmaster is offline  
post #3 of 3 (permalink) Old 08-21-2013, 02:03 PM Thread Starter
Junior Member
Join Date: Mar 2010
Posts: 5
Thanks I appreciate it. Maybe I'll post it in the other section. I did cycle the key a few times in the past and I always get the same issue when starting the car when its cold.
Krayzie949 is offline  
Sponsored Links

Quick Reply

Register Now

In order to be able to post messages on the Chevy Impala SS Forum 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 for yourself.

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 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
Trackbacks are On
Pingbacks are On
Refbacks are On

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