Fuel pump or fuel filter? Need some help! - DodgeIntrepid.Net Forums - Dodge Intrepid, Concorde, 300m and Eagle Vision chat
Reply
 
LinkBack Thread Tools Rate Thread Display Modes
post #1 of 21 (permalink) Old 12-06-2004, 09:14 PM Thread Starter
Intrepid Pro
 
primetime's Avatar
 
Join Date: Apr 2004
Location: Mason, OH
Posts: 1,901
Feedback: 8 / 100%
                     
Fuel pump or fuel filter? Need some help!

I have a problem with my 98 2.7L trep. I ran a bottle of fuel injection cleaner, went through the entire tank, and at the start of the next full tank I have been having problems. When I try to start the car approx 30-60 minutes after a 30 min drive home from work, the car has trouble starting up. It bogs and I have to give it some gas. Sometimes, I can just turn it off, restart it and its fine. Once it starts running, its fine. At idle RPMS are at exactly 500. It has no problem starting up in the morning. No engine light or oil light comes on. Anyone ever have this kind of problem? I also had the engine oil flushed and replaced with synthetic. It has been almost 2000 miles so I'm going to change it real soon. Do you think my problem could be fuel related? Perhaps the fuel filter needs replaced? How do you check for correct fuel pressure? Bad fuel pump or injectors? What I don't understand is that it only happens at start up and only after a long drive while the engine is still hot! It has 83,000 miles and the timing chain, tensioner, water pump, and oil pump have never been replaced. Still have the original plugs, pcv valve, egr valve, 02 sensors. I don't want to replace anything if nothing needs replaced, but this is starting to worry me.

Last edited by primetime; 12-06-2004 at 09:28 PM.
primetime is offline  
Sponsored Links
Advertisement
 
post #2 of 21 (permalink) Old 12-06-2004, 09:23 PM
 
Join Date: Oct 2004
Posts: 415
Feedback: 0 / 0%
 
I would say the filter man.
Minagera is offline  
post #3 of 21 (permalink) Old 12-06-2004, 09:35 PM
Intrepid Pro
 
Join Date: Jul 2004
Location: Lincoln NE
Posts: 1,373
Feedback: 0 / 0%
                     
It is in the fuel system I would say, if you can find the fuel pressure test valve(should be somewhere on the fuel rail) you can use a fuel pressure gauge to test pressure. It might be as simple as a filter or you may have to replace the fuel pump I would check the pressure and check a Chilton manual or Haynes to see what should be done next.
popimp is offline  
Sponsored Links
Advertisement
 
post #4 of 21 (permalink) Old 12-06-2004, 09:50 PM Thread Starter
Intrepid Pro
 
primetime's Avatar
 
Join Date: Apr 2004
Location: Mason, OH
Posts: 1,901
Feedback: 8 / 100%
                     
The fuel filter is a pain to replace because you need to drop the tank. I'm going to check my IAC and see if there is any sludge in this and also my pvc tube. The problem in this thread:

https://www.dodgeintrepid.net/forums/...2108&highlight

sounds exaclty like mine. Looks like it could be a number of things. This site rules. At least now I know what potentially has to be replaced.
primetime is offline  
post #5 of 21 (permalink) Old 12-09-2004, 06:12 PM
 
Join Date: Jun 2004
Posts: 32
Feedback: 0 / 0%
 
This sounds like the fuel pressure regulator is bad. It's a hot soak condition where the fuel pressure regualtor is bad and fuel is leaking into the intake through the vacuum line after the engine is shut down. Pull the vacuum line off of the fuel pressure regulator and see if it smells like gas. Also (with the vacuum line off) cycle the key on a few times, start it up, ect... and see if you can see fuel leaking from the fitting that the vacuum line connects to. Have a buddy start the car after you have let it sit for 30 min. after a long drive. You stand at the rear of the car by the tailpipe and when he starts it up notice if you have a little puff of black smoke come out. This would all lead to a bad fuel pressure regulator.
gtm245 is offline  
post #6 of 21 (permalink) Old 12-09-2004, 06:36 PM Thread Starter
Intrepid Pro
 
primetime's Avatar
 
Join Date: Apr 2004
Location: Mason, OH
Posts: 1,901
Feedback: 8 / 100%
                     
Thanks for the advice! With the spark plugs, IAC, PVC valve changed, and TB cleaned it seems to start up fine.....for now. The cats have been checked and are ok. I actually do recall seeing some black smoke comming out the back. I will try what you said. It's probably not a bad idea to change the fuel pump, filter, and regulator with 83K on the car anyway. Once this engine goes, a 3.5 HO will take its place!
primetime is offline  
post #7 of 21 (permalink) Old 12-09-2004, 07:32 PM Thread Starter
Intrepid Pro
 
primetime's Avatar
 
Join Date: Apr 2004
Location: Mason, OH
Posts: 1,901
Feedback: 8 / 100%
                     
Isn't the regulator on the fuel pump itself? Do I have to drop the tank to check the vaccum line it or is it accessable through a panel?
primetime is offline  
post #8 of 21 (permalink) Old 12-09-2004, 07:35 PM
 
Join Date: Oct 2003
Posts: 865
Feedback: 0 / 0%
                     
I have to change the fuel filter soon, not looking forward to it.
LeadFootLee is offline  
post #9 of 21 (permalink) Old 12-09-2004, 07:56 PM
.
 
Hypnos's Avatar
 
Join Date: Jul 2002
Location: Michigan
Posts: 9,861
Feedback: 0 / 0%
                     
Quote:
Originally Posted by primetime
Isn't the regulator on the fuel pump itself?
It's in the tank, with the pump, yes. Have to drop the tank to get to any of it.

Quote:
Originally Posted by LeadFootLee
I have to change the fuel filter soon, not looking forward to it.
What are you complaining about? You have a 1G. The filter is outside the tank. It's much easier to change then on a 2G.


Check fuel pressure before assuming it's a fuel problem. It could also be an intake or spark issue.
Hypnos is offline  
post #10 of 21 (permalink) Old 12-10-2004, 07:38 PM Thread Starter
Intrepid Pro
 
primetime's Avatar
 
Join Date: Apr 2004
Location: Mason, OH
Posts: 1,901
Feedback: 8 / 100%
                     
Everything seems to be working now. I guess it wasn't fuel related after all.
primetime is offline  
post #11 of 21 (permalink) Old 12-10-2004, 08:19 PM
 
Join Date: Oct 2003
Posts: 865
Feedback: 0 / 0%
                     
Quote:
What are you complaining about?...
not really complaining, just not looking forward to changing it.
LeadFootLee is offline  
post #12 of 21 (permalink) Old 12-11-2004, 02:30 PM
 
Join Date: May 2004
Posts: 2,893
Feedback: 0 / 0%
                     
the simplicity of 1gs
ESMIKE96 is offline  
post #13 of 21 (permalink) Old 12-11-2004, 02:36 PM
Intrepid Pro
 
crombie's Avatar
 
Join Date: Feb 2002
Location: Maryland
Posts: 9,831
Feedback: 0 / 0%
                     
Quote:
Originally Posted by primetime
Everything seems to be working now. I guess it wasn't fuel related after all.
Sooo.... what did you do to correct the problem?
crombie is offline  
post #14 of 21 (permalink) Old 12-12-2004, 02:39 AM Thread Starter
Intrepid Pro
 
primetime's Avatar
 
Join Date: Apr 2004
Location: Mason, OH
Posts: 1,901
Feedback: 8 / 100%
                     
New spark plugs, cleaned TB, new IAC, and new PVC valve. So far so good.
primetime is offline  
post #15 of 21 (permalink) Old 12-12-2004, 07:43 PM
 
Join Date: Jun 2004
Posts: 32
Feedback: 0 / 0%
 
Wow your right the fuel pressure regulator is on the gas tank. Wow I must say that is incredably stupid.
gtm245 is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the DodgeIntrepid.Net Forums - Dodge Intrepid, Concorde, 300m and Eagle Vision chat forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

Member names may only be composed of alpha-numeric characters. (A-Z and 0-9)

!!ATTENTION ADVERTISERS!! If you intend on advertising anything on this forum, whatsoever, you are required to first contact us here . Additionaly, we do NOT allow BUSINESS NAMES unless you are an Authorized Vendor. If you own a business, and want to do sales on this site via posting or private message, you will need to follow the rules. Shops, Stores, Distributors, Group Buys without being authorized will see your account terminated.

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

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










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



Similar Threads
Thread Thread Starter Forum Replies Last Post
300M Fuel Fillup problem ladelberg Chrysler 300M 4 09-01-2014 04:58 PM
***seafoam*** silver&gold General Discussion 165 05-19-2008 01:50 PM
Intermittent "Low Fuel Warning Indicator" Lighting Up brj319 General Discussion (First Generation) 2 10-20-2004 12:14 PM
Fueling problems Shane Intrepid R/T and SXT 15 05-19-2003 05:31 PM
Fuel Pump How-TO (kinda long) silver ghost Performance / Modifications (First Generation) 2 08-05-2002 10:03 PM

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