94 4.0l
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Joined: Sep 2005
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94 4.0l
Hi all, i' m new in this forum and it' s very great...
I have an explorer sport with 4.0l auto 4x4, 145000km and i have 2 problemes
1: when it's cold it start very good but go to the road and the rpm is not stady about 200 or 300rpm up and down and when is hot no prob.
2: when is hot about +-2500rpm when i need more power it ping.
I clean the Maf and put a new egr and replace iac.
What wrong
Thank
Dan
I have an explorer sport with 4.0l auto 4x4, 145000km and i have 2 problemes
1: when it's cold it start very good but go to the road and the rpm is not stady about 200 or 300rpm up and down and when is hot no prob.
2: when is hot about +-2500rpm when i need more power it ping.
I clean the Maf and put a new egr and replace iac.
What wrong
Thank
Dan
Last edited by danxc; Sep 9, 2005 at 07:30 PM.
Hotshot
Joined: May 2004
Posts: 12,170
Likes: 5
From: The hills of No. Calif.
Hi Dan, and welcome to FTE! Please take a moment to check out the guidelines, they will give you important information that you'll need when posting here.
https://www.ford-trucks.com/guidelines.html
The first thing I would do is to check the codes. Even if the Check Engine Light isn't on, the computer can still generate and store fault codes. You can purchase a code scanner pretty cheaply, or, some auto parts stores will check them for you for free, since they hope you will buy the parts you need from them. There is also a method you can use to check the codes with an analog (needle-type) multi-meter.
I am thinking, just off the top of my head, about the IAC (Idle Air Control) valve, or possibly the Coolant Temperature sensor. But those are just guesses, it's always best to pull the codes.
https://www.ford-trucks.com/guidelines.html
The first thing I would do is to check the codes. Even if the Check Engine Light isn't on, the computer can still generate and store fault codes. You can purchase a code scanner pretty cheaply, or, some auto parts stores will check them for you for free, since they hope you will buy the parts you need from them. There is also a method you can use to check the codes with an analog (needle-type) multi-meter.
I am thinking, just off the top of my head, about the IAC (Idle Air Control) valve, or possibly the Coolant Temperature sensor. But those are just guesses, it's always best to pull the codes.
Postmaster
Joined: Dec 2001
Posts: 3,742
Likes: 2
From: UT
Another thing related to #2, make sure the intake manifold bolts are tight. They have a reputation for coming loose which leads to engine ping (also tends to leave coolant deposits on spark plugs especially #5).
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