95 Ranger Hesitation/Surging Problem
Thread Starter
|
New User
Joined: Jul 2004
Posts: 3
Likes: 0
From: OK
95 Ranger Hesitation/Surging Problem
I have a 1995 4.0L ranger that has developed an odd problem. Only after it has warmed up, when I accelerate from 1000rpm to about 3000rpm, I get a periodic hesitation that kind of throws you forward in your seat. If I accelerate slowly, it doesn't hesistate. When the engine is cold, it accelerates just fine. I replaced the mass airflow sensor after my computer reader said it was bad but it didn't solve the problem. Any ideas?
Thanks,
Aaron
Thanks,
Aaron
Last edited by Aaron_W; Jul 17, 2004 at 04:10 PM. Reason: added info
Thread Starter
|
New User
Joined: Jul 2004
Posts: 3
Likes: 0
From: OK
Thanks for the welcome Cowboy.
No other codes but about 3 years ago, it did generate a code relating to the EGR valve. I pulled it, cleaned the carbon out, and reset the trouble code. It has not generated that code since. Other than the MAF sensor, a thermostat and the EGR valve, this engine has been trouble free for 90,000 miles.
No other codes but about 3 years ago, it did generate a code relating to the EGR valve. I pulled it, cleaned the carbon out, and reset the trouble code. It has not generated that code since. Other than the MAF sensor, a thermostat and the EGR valve, this engine has been trouble free for 90,000 miles.
Post Fiend
Joined: Feb 2003
Posts: 6,940
Likes: 2
From: Eastern WA
An egr opening too soon can cause the condition. When was the last time the fuel filer was replaced? On another note, and it would be a rather odd time of the year, but any chance there is some water in the gas?
Thread Starter
|
New User
Joined: Jul 2004
Posts: 3
Likes: 0
From: OK
Thinking along those same lines, I replaced the fuel filter about 500 miles ago. This problem has been going on for 5 months now so I've had many fuel fillings and wouldn't think I'd have any water in the tank.
Senior User
Joined: Mar 2004
Posts: 140
Likes: 0
From: Sunriver, Or
i have the same problem - no codes, hesitation while warm, surging. mine also stumbles bad right after a warm start. if you figure it out, post it. i am getting good mileage, and no codes. i figure it is fuel related. this truck sat for almost a year, so i figured water in the gas. i have been adding gas treatment to every tank, and have not had much luck.
Thread
Thread Starter
Forum
Replies
Last Post
jayhawkfan
1983 - 2012 Ranger & B-Series
7
Jan 31, 2007 10:58 AM
3eggOmelet
Small Block V8 (221, 260, 289, 5.0/302, 5.8/351W)
13
Dec 16, 2003 04:33 PM
bnj
1983 - 2012 Ranger & B-Series
3
Oct 27, 2003 08:11 AM
