V6 Tech Forums For all your 3.8L and 4.0L needs!

Not sure what's wrong...

  #1  
Old 11-02-2010, 11:47 AM
Shadow_Stang's Avatar
Senior Member
Thread Starter
Join Date: Aug 2009
Location: Whitesburg, Ky
Posts: 315
Default Not sure what's wrong...

My car has been jerking pretty bad for a few months now whenever I accelerate. There isn't a check engine light, and I thought it was just bad gas at first, but it's still doing it. I'm not sure how to explain it, but it's getting really annoying, and does it even worse if going up a hill.

Sometimes it will run smooth, then later on that day it will start jerking again. It's a 3.8 with 78,000 miles on it, automatic. I don't think it's the spark plugs, since I had new ones put on it back in february. Maybe the fuel pump?

I'm not a car expert or anything, but maybe one of you guys can help me figure out whats wrong? Let me know if you need more info.
 
  #2  
Old 11-02-2010, 11:57 AM
probiker427's Avatar
Senior Member
Join Date: Mar 2009
Location: Mahwah, NJ
Posts: 1,062
Default

yeah sounds like the fuel pump, exactly what mine was doing when it went bad last month.
 
  #3  
Old 11-02-2010, 01:32 PM
krenogin's Avatar
A pony.
Join Date: Feb 2008
Location: Kentucky
Posts: 1,782
Default

Under hard acceleration sounds like it may be that.
 
  #4  
Old 11-02-2010, 02:12 PM
Shadow_Stang's Avatar
Senior Member
Thread Starter
Join Date: Aug 2009
Location: Whitesburg, Ky
Posts: 315
Default

Originally Posted by probiker427 View Post
yeah sounds like the fuel pump, exactly what mine was doing when it went bad last month.
Originally Posted by krenogin View Post
Under hard acceleration sounds like it may be that.
Can I order a new one from Ford, or is there anothe site you'd recommend? Do you guys know how hard it might be to replace it on my own?
 
  #5  
Old 11-02-2010, 02:13 PM
probiker427's Avatar
Senior Member
Join Date: Mar 2009
Location: Mahwah, NJ
Posts: 1,062
Default

any auto shop or parts store will have one, and no there not too difficult to install.
 
  #6  
Old 11-02-2010, 02:51 PM
r3dn3ck's Avatar
Wowbagger hates me too!
Join Date: Nov 2005
Location: Magrathea/California
Posts: 9,865
Default

why not try the fuel filter first.
 
  #7  
Old 11-02-2010, 03:21 PM
krenogin's Avatar
A pony.
Join Date: Feb 2008
Location: Kentucky
Posts: 1,782
Default

Good point, try that. I changed my fuel filter at that mileage, and mine was BAD, had black stuff running out of it.
 
  #8  
Old 11-02-2010, 08:57 PM
Shadow_Stang's Avatar
Senior Member
Thread Starter
Join Date: Aug 2009
Location: Whitesburg, Ky
Posts: 315
Default

Originally Posted by r3dn3ck View Post
why not try the fuel filter first.
Yea, I plan to in the next day are so. Just wanted a back up plan incase it didn't work. The car still runs fine other than the jerking... but it's getting real annoying, especially when friends ride with me, and are like 'wtf'?
 
  #9  
Old 01-18-2011, 06:10 AM
r3dn3ck's Avatar
Wowbagger hates me too!
Join Date: Nov 2005
Location: Magrathea/California
Posts: 9,865
Default

plugs also cause this sort of thing.
 
  #10  
Old 01-18-2011, 07:48 AM
Shadow_Stang's Avatar
Senior Member
Thread Starter
Join Date: Aug 2009
Location: Whitesburg, Ky
Posts: 315
Default

I still don't know what the hell is wrong. I changed the fuel filter, but that didn't help, so I took it to the local car quest here, and they put a new fuel pump in... it drove fine for like 2 weeks... then one day I was going up a hill, the engine started making some weird knocking sound.. idk how to describe it... and the car wouldn't accelerate. I coasted into a parking lot.

Later that night I came back and got it, it barely made it home. Haven't taken it anywhere yet because of the snow. The car looks good... but when it comes to getting me place... it apparently hates me. I'll get it fixed eventually.
 
  #11  
Old 01-18-2011, 02:20 PM
sand1303's Avatar
Senior Member
Join Date: May 2008
Location: Austin, TX
Posts: 965
Default

ouch for a shop to put in a fuel pump it aint cheap. i hate spending money on stuff and still having the same problems. hope u figure it out soon.
 
  #12  
Old 01-18-2011, 04:59 PM
Shadow_Stang's Avatar
Senior Member
Thread Starter
Join Date: Aug 2009
Location: Whitesburg, Ky
Posts: 315
Default

Originally Posted by sand1303 View Post
ouch for a shop to put in a fuel pump it aint cheap. i hate spending money on stuff and still having the same problems. hope u figure it out soon.
Well I got lucky, my Dad paid for the new fuel pump and the labor. What pisses me off is that the people at carquest hooked it up to a machine to see what the check engine light was on for... and the computer said it was the fuel pump. So I get a new fuel pump... but the problem still continues. I'm not an expert with cars at all... but hopefully it's something simple and I'll get it back soon.

I have a gt rear bumper cover, h&r ss springs, and m/m CC plates sitting in my room waiting to go on... and then this happens.
 
  #13  
Old 01-28-2011, 08:19 PM
sand1303's Avatar
Senior Member
Join Date: May 2008
Location: Austin, TX
Posts: 965
Default

my brother had a chevy cavalier with the same problem. i don't remember what it was but we dropped the fuel tank and replaced the fuel pump about four times. there was some sensor or relay or something inline on the fuel system that kept killing the pump. we would put a new pump on and his car would run great for about a month or two then wouldn't start.
 
  #14  
Old 01-28-2011, 10:51 PM
Shadow_Stang's Avatar
Senior Member
Thread Starter
Join Date: Aug 2009
Location: Whitesburg, Ky
Posts: 315
Default

Originally Posted by sand1303 View Post
my brother had a chevy cavalier with the same problem. i don't remember what it was but we dropped the fuel tank and replaced the fuel pump about four times. there was some sensor or relay or something inline on the fuel system that kept killing the pump. we would put a new pump on and his car would run great for about a month or two then wouldn't start.
Well I finaly figured it out... I have a miss-fire in one of the cylinders. And the radiator wasn't getting fluid because of two leaks in the hose or whatever. Plus the heat went out, so now I can't drive on cold nights because the windows ice over.

Anyways, it's all getting fixed Tuesday.

(anyone know what I need to buy to get the heat working again?)
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
RCTrucker7
The Lounge
9
06-11-2009 09:06 PM
General Tech Forum
4
11-21-2006 03:54 PM
Arak-Nafein
Order Status ?'s
2
12-11-2005 08:14 PM
ThePunisher
Pictures
6
06-18-2005 04:04 PM
MineralGT
General Tech Forum
2
04-25-2005 07:50 PM


Thread Tools
Search this Thread
Quick Reply: Not sure what's wrong...


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.