Automotive Forums .com - the leading automotive community online! Automotive Forums .com - the leading automotive community online!
Automotive Forums .com - the leading automotive community online! 
-
Latest | 0 Rplys
Go Back   Automotive Forums .com Car Chat > Ford > Mustang > Mustang Problem Diagnosis
Mustang Problem Diagnosis Got a problem you can't fix? Post here and one of our members will answer as soon as possible.
Reply Show Printable Version Show Printable Version | Email this Page Email this Page | Subscription Subscribe to this Thread
 
Thread Tools Search this Thread
Old 06-26-2018, 11:52 AM   #1
ForeverDrivin
AF Newbie
 
Join Date: Jan 2018
Location: Bradenton
Posts: 6
Thanks: 0
Thanked 0 Times in 0 Posts
98 mustang randomly loses power

I got a 98 v6 a couple months ago and when I got it, the fuel pump went out. I replaced it and kept the stock gasket because it looked fine (and I just wanted to drive it already). It runs decently now, but sometimes the car would lose power, like it went into some kind of limp mode or cylinders weren't firing. Out of the many codes the car has, the P1443 is what I think is causing it. I've heard a solenoid valve stuck open could cause a vacuum leak so I'm wondering if it's that, but so can a bad f-pump gasket. I've left the code alone for a couple weeks and it was fine until yesterday when the car had lost so much power I could barely get out of first gear. I had to pull over and wait a minute or two, then it gained a little more power back until it was back to normal again. It also lurches when it's being driven while low on power.

I was also low on coolant as I have a leak, but I doubt that was the cause. Thanks for anyone who can help out and offer advice.
ForeverDrivin is offline   Reply With Quote
Old 06-26-2018, 04:31 PM   #2
Stealthee
Your worst nightmare
 
Stealthee's Avatar
 
Join Date: Oct 2004
Location: Smithfield, Pennsylvania
Posts: 5,503
Thanks: 5
Thanked 147 Times in 144 Posts
Re: 98 mustang randomly loses power

P1443 shouldn't have any affect on power. It is simply for the evap purge solenoid which just dumps gas fumes into the charcoal canister.

A bad fuel pump gasket will likely not even let the car start because the pump can't properly prime.

You stated you have numerous codes. Maybe you should list them all and maybe we can get you pointed in the right direction.
__________________
Stealthee is offline   Reply With Quote
Old 06-26-2018, 11:53 PM   #3
ForeverDrivin
AF Newbie
Thread starter
 
Join Date: Jan 2018
Location: Bradenton
Posts: 6
Thanks: 0
Thanked 0 Times in 0 Posts
Re: 98 mustang randomly loses power

Quote:
Originally Posted by Stealthee View Post
P1443 shouldn't have any affect on power. It is simply for the evap purge solenoid which just dumps gas fumes into the charcoal canister.

A bad fuel pump gasket will likely not even let the car start because the pump can't properly prime.

You stated you have numerous codes. Maybe you should list them all and maybe we can get you pointed in the right direction.
The codes are as follows: p1443 (thrown twice), p1131 & 1151, p1000, and p1260 (thrown twice). I also noticed another thing today. The car normally idles a few hundred rpms below 1000, but when it loses power it will idle at 500 rpms.

Regarding the lean codes, the bolts keeping the passenger side headers and exhaust system connected seem to have slipped a bit as the gap between them seems a bit too large, but I've never seen another 98 mustang's header connections so I can't be sure. I don't even know if the computer would make it run so poorly if it thought it was lean but might be good info.
ForeverDrivin is offline   Reply With Quote
 
Reply

POST REPLY TO THIS THREAD


Bookmarks

Tags
1998, mustang, p1443, pump, solenoid
Go Back   Automotive Forums .com Car Chat > Ford > Mustang > Mustang Problem Diagnosis

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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



All times are GMT -5. The time now is 04:50 PM.

Community Participation Guidelines | How to use your User Control Panel

Powered by: vBulletin | Copyright Jelsoft Enterprises Ltd.
 
 
no new posts