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-   -   Misfiring (https://www.ranger-forums.com/4-0l-ohv-sohc-v6-tech-33/misfiring-69094/)

jacklee505 Jul 31, 2008 02:54 PM

Misfiring
 
About a month ago my check engine light came on when I was driving and nothing happened.

Well then when I was stopped at a stop sign my truck started shaking back and forth and it was misfiring. Then sometimes the battery light came on and my truck died.

When I popped my hood and turned on my truck I could hear a vacuum sucking noise. When I looked, there were two perfect holes in one of the hoses.

I went in today to get it serviced and the mechanic knew right away what was wrong with it when I started to explain to him what was wrong.

So it's over there right now getting it's hose replaced.

The mechanic also said that most fords have that happen at least once in their lifetime. He said something goes wrong and it makes two perfect size holes that looked like someone stuck a screwdriver twice in the hose.

Has this ever happened to anyone elses ford before?

Shaklakan Jul 31, 2008 02:56 PM


Originally Posted by jacklee505 (Post 1022260)
About a month ago my check engine light came on when I was driving and nothing happened.

Well then when I was stopped at a stop sign my truck started shaking back and forth and it was misfiring. Then sometimes the battery light came on and my truck died.

When I popped my hood and turned on my truck I could hear a vacuum sucking noise. When I looked, there were two perfect holes in one of the hoses.

I went in today to get it serviced and the mechanic knew right away what was wrong with it when I started to explain to him what was wrong.

So it's over there right now getting it's hose replaced.

The mechanic also said that most fords have that happen at least once in their lifetime. He said something goes wrong and it makes two perfect size holes that looked like someone stuck a screwdriver twice in the hose.

Has this ever happened to anyone elses ford before?

never happened to me and it sounds kinda fishy i don't know... made any new enemys? lol

jacklee505 Jul 31, 2008 03:02 PM


Originally Posted by Shaklakan (Post 1022264)
never happened to me and it sounds kinda fishy i don't know... made any new enemys? lol

No I dont think so! Or at least nobody who can access my hood. Plus the holes are underneath the hose. Somebody would actually poke them in the top, not reach underneath to do it.

john93rangerstx Jul 31, 2008 03:08 PM

mine blew off one time

lhc_cj7 Aug 10, 2008 01:24 PM

The wifes 03 expo 4.6 did the same thing. Shook and very rough idle, would die but restart. Away from idle it was fine. Reading forums found the problem is common to a vacuum hose from valve cover to back of manifold.

The daughters 94 mustang had the same thing. CEL lean bank 1 and 2 went right to looking for a vacuum leak. Same area, vacuum hose that connects to back of manifold.

The sons 96 ranger is fine so far. But if rough idle comes up, a vacuum leak is the first thing i look for.

This is somewhat common.

Alex98 Aug 10, 2008 05:32 PM

fords are notorious for vacuum leaks mine had one but it was the upper intake manifold gaskets


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