1995 302 engine miss - Ford F150 Forum - Community of Ford Truck Fans



1995 302 engine miss

Reply
 
 
 
Thread Tools Search this Thread
Old 10-22-2007, 02:42 PM   #1
Junior Member
Thread Starter
 
Join Date: Oct 2007
Posts: 2
Thanks: 0
Thanked 0 Times in 0 Posts
Default 1995 302 engine miss

Can anyone give me an idea on what the problem may be. I have a 95 with a 302. A few years ago, i started to develop an engine miss on slow to medium acceleration ( particularly when it is in overdrive). It is a hard extremely noticeable miss and it continues until I reach the speed I want, and then runs fine. The miss is not evident at idle or at cruising. If I am accelerating fairly hard, I don't feel the miss. I changed the plugs, wires, rotor and distributor cap guessing that this was where the problem was. That solved the problem. About 10-15,000 miles later, it started again. I changed everything again and again the problem seemed solved. Now about 6,000 miles late it is missing and bucking again as before. I cannot believe the problem is in the wires, etc. again, but if it is there must be something else causing this to happen. Coil? I don't think it is fuel filter sinse the miss isn't evident on hard acceleration or at highway cruising speeds. However, I suppose it can be most anything.
I would certainly appreciate any ideas anyone can offer.
mach351 is offline   Reply With Quote
Old 10-22-2007, 07:32 PM   #2
Senior Member
5 Year Member
 
wde3477's Avatar
 
Join Date: Jul 2007
Location: Cape Girardeau MO
Posts: 2,513
Thanks: 0
Thanked 42 Times in 42 Posts
Default

Standard question - have you checked the computer for any fault codes? Does the 'check engine' light work (self-test at start?), and has it come on otherwise?

One initial thought is the throttle position sensor (TPS).
Another is an EGR system malfunction.
Computer should've picked up either of these problems.

Coil? Maybe - can check by measuring resistances of primary and secondary sides against spec, or by pulling a plug - looking for a good, solid blue spark. I would think that the problem be worst under heavy acceleration for a bad coil, but stranger things have happened.

A volt/ohm meter and a code reader go a long ways towards troubleshooting the newer, computer-controlled vehicles.

And - welcome to the site!
wde3477 is offline   Reply With Quote
Old 10-23-2007, 02:18 PM   #3
Junior Member
Thread Starter
 
Join Date: Oct 2007
Posts: 2
Thanks: 0
Thanked 0 Times in 0 Posts
Default

The check engine light does come on when the key is turned on when I start the engine. The light goes out and it does not come on at all when I am experiencing the problem. I have a friend with a code reader. I should have done that first. Hopefully, I can find the problem.
Thanks WDE3477. I appreciate your input.
mach351 is offline   Reply With Quote
Old 10-26-2007, 07:23 PM   #4
Member
 
svt tech's Avatar
 
Join Date: Apr 2007
Posts: 46
Thanks: 0
Thanked 0 Times in 0 Posts
Default

Quote:
Originally Posted by mach351 View Post
The check engine light does come on when the key is turned on when I start the engine. The light goes out and it does not come on at all when I am experiencing the problem. I have a friend with a code reader. I should have done that first. Hopefully, I can find the problem.
Thanks WDE3477. I appreciate your input.
What kind of plugs,wires,cap,and rotor are you using?
svt tech is offline   Reply With Quote
Old 10-26-2007, 10:10 PM   #5
Senior Member
5 Year Member
 
wde3477's Avatar
 
Join Date: Jul 2007
Location: Cape Girardeau MO
Posts: 2,513
Thanks: 0
Thanked 42 Times in 42 Posts
Default

x2 on svt_tech comments, considering the problem seems solved after each replacement episode.

If you're using AutoZone-level crap, it don't last long IMHO. 'Wells' brand should be advertised as minimally-acceptable parts only for those looking to dump their vehicle to the next sucker.
wde3477 is offline   Reply With Quote
Old 10-27-2007, 09:18 PM   #6
Member
 
svt tech's Avatar
 
Join Date: Apr 2007
Posts: 46
Thanks: 0
Thanked 0 Times in 0 Posts
Default

Quote:
Originally Posted by wde3477 View Post
x2 on svt_tech comments, considering the problem seems solved after each replacement episode.

If you're using AutoZone-level crap, it don't last long IMHO. 'Wells' brand should be advertised as minimally-acceptable parts only for those looking to dump their vehicle to the next sucker.
Exactly.I could have not said it better.I have been working as a Ford Tech and racing Mustangs for 20 years.I have seen it all.Those aftermarket parts,whether it be Autozone,NAPA,or any of the others just cannot compete with the original equipment.I do not understand why.I guess they will contract the lowest bidder to manufacture parts.They can make better stuff.They just do not sell it.
svt tech is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
vacuum lines ericantonio 1987 - 1996 F150 34 09-22-2015 01:56 PM
New guy and new to ford w/ question legend2883 2015 - Present Ford F150 7 09-09-2015 08:50 PM
2007 302 swap Trey Parker Brevelle Members Builds 1 09-07-2015 07:30 PM
Engine ping rlsrrp 1987 - 1996 F150 2 09-05-2015 10:29 PM
Hey everyone Brandyn193 Introductions 1 09-04-2015 05:06 PM


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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 04:00 PM.


Copyright 2006 - 2016 F150Forum.com