The unofficial resource center for Mustang owners and enthusiasts
Ford Mustang Forums - Ford Mustang Classifieds - MustangForums.com Photo Galleries - MustangForums.com Chat Room - Create an Account - Mustang News


Go Back   MustangForums.com > Ford Mustang Tech > 4.6 (Modular) Mustang > 4.6L General Discussion
Welcome to Mustang Forums!
Welcome to Mustang Forums.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!


Reply
 
Thread Tools Search this Thread
Old 10-19-2009, 08:20 PM   #1
tempoffroad
2nd Gear Member
 
Join Date: Apr 2008
Posts: 223
Default loss of power and ticking when reved high what is it?

a few weeks ago i think that i overreved the motor a little high and it lost some power(maybe a cyl or 2) and it was ticking well i kept driving and the power came back on and the ticking stopped. well now i went to take it to maybe 4500 and again it lost power for a minute and ticked for maybe 5 minutes then all was well again, I have ran compression test and have 150 on all 8. all plugs are good and tight. not sure what else unless its a 4.6 lifter(cant remember what they are called) or a broken valve spring. I did pull the cover and didnt notice anyting and the oil is clean.

thanks
This ad is not displayed to registered or logged-in members.
Register your free account today and become a member on Mustang Forums!
__________________
2001 stock gt 5speed...they all come stock with the nitrous bottle in the trunk right?
1966 mustang auto, v8, air, ps, pb, needs paint and a bottle in the trunk.
tempoffroad is offline   Reply With Quote
Old 10-19-2009, 08:33 PM   #2
1999 GT
3rd Gear Member
2003 Ford Mustang
 
Join Date: Feb 2008
Vehicle: 2003 Mustang GT
Location: CT
Posts: 862
Send a message via AIM to 1999 GT Send a message via Yahoo to 1999 GT
Default

Quote:
Originally Posted by tempoffroad View Post
not sure what else unless its a 4.6 lifter(cant remember what they are called)
thanks
lash adjuster(s)
__________________


'03 Zinc Yellow GT 5spd
Eibach pro-kit
MAC catback
VRS o/r x
Granatelli 75mm TB & Plenum
pro 5.0 short throw
K&N filter
99/01 cobra front bumper
Chrome saleens
all the appearance stuff

http://www.youtube.com/watch?v=gKYVPcX50yI

Quote:
Originally Posted by sxynerd View Post
Who buys 17" Saleens? It's like having a mentally challenged girlfriend. Everyone's proud of you for having a GF and that you're not gay but they still feel bad for you.
1999 GT is offline   Reply With Quote
Old 10-19-2009, 08:56 PM   #3
tempoffroad
2nd Gear Member
 
Join Date: Apr 2008
Posts: 223
Default

so is that the problem bad lash adjuster? i can drive all week and its fine sound and power untill i rev it to around 4k
__________________
2001 stock gt 5speed...they all come stock with the nitrous bottle in the trunk right?
1966 mustang auto, v8, air, ps, pb, needs paint and a bottle in the trunk.
tempoffroad is offline   Reply With Quote
Old 10-20-2009, 01:30 AM   #4
Nichoms
 
Nichoms's Avatar
 
Join Date: Aug 2007
Vehicle: 2002 Mustang GT
Location: Oklahoma
Posts: 45
Default

I think he was just saying they are called lash adjusters, not necessarily that that is the problem.
-How high did you rev? And when you went to that RPM did you hear a pop or a bang?
-Did the problem start immediately after over-revving?
__________________
02 GT Saleen supercharged, 30lb injectors, MAC prochamber, flows, Triax, lowered, subframes, 3.73's girdle, rear control arms
317rwhp 335rwtq on crappy lean saleen tune
Now Sniper tuned soon to be dynoed
Nichoms is offline   Reply With Quote
Old 10-20-2009, 06:01 AM   #5
tempoffroad
2nd Gear Member
 
Join Date: Apr 2008
Posts: 223
Default

reved to maybe 7k(not sure why rev limiter did not catch it) and i did not hear anything just power loss and ticking that both went away.
__________________
2001 stock gt 5speed...they all come stock with the nitrous bottle in the trunk right?
1966 mustang auto, v8, air, ps, pb, needs paint and a bottle in the trunk.
tempoffroad is offline   Reply With Quote
Old 10-20-2009, 02:56 PM   #6
tempoffroad
2nd Gear Member
 
Join Date: Apr 2008
Posts: 223
Default

anyone have an idea?
__________________
2001 stock gt 5speed...they all come stock with the nitrous bottle in the trunk right?
1966 mustang auto, v8, air, ps, pb, needs paint and a bottle in the trunk.
tempoffroad is offline   Reply With Quote
Old 10-20-2009, 03:19 PM   #7
Derf00
6th Gear Member
 
Join Date: Feb 2005
Location:
Posts: 6,836
Default

Collapsed valve spring perhaps or broken spring seat if it's intermittent and only at 4K or higher. If you're free reving it to 4K then there's a rev limiter kicking in. If you're driving though and it's doing it, I'm guessing a collasped spring.
Derf00 is offline   Reply With Quote
Old 10-20-2009, 04:10 PM   #8
Fobra
5th Gear Member
 
Join Date: May 2007
Location:
Posts: 3,634
Default

you mean a collapsed lifter? There could be a problem with a spring, but I dont its broken or it wouldnt be intermittent.
__________________
TRADE MY Mach 1 HOOD + scoop set up for easy GT install (attached, no intake system necessary, unless you want it) for a COWL hood and maybe STOCK + CASH (but probably not). The hood is painted silver, in great shape, does need a color sand, but thats no biggie. Would prefer a swap for a silver one, but will consider many options. Need to trade due to changed plan on this car. RTP/Greensboro/Charlotte
Fobra is offline   Reply With Quote
Old 10-20-2009, 04:54 PM   #9
tempoffroad
2nd Gear Member
 
Join Date: Apr 2008
Posts: 223
Default

it does it under load i am thinking that i have a weak spring or lash adjuster.
__________________
2001 stock gt 5speed...they all come stock with the nitrous bottle in the trunk right?
1966 mustang auto, v8, air, ps, pb, needs paint and a bottle in the trunk.
tempoffroad is offline   Reply With Quote
Old 10-20-2009, 04:57 PM   #10
tempoffroad
2nd Gear Member
 
Join Date: Apr 2008
Posts: 223
Default

whatever it is it is fine under normal driving so i guess my wife has her a new car till after christmas when i can get it fixed. (she drives easy)
__________________
2001 stock gt 5speed...they all come stock with the nitrous bottle in the trunk right?
1966 mustang auto, v8, air, ps, pb, needs paint and a bottle in the trunk.
tempoffroad is offline   Reply With Quote



Reply



Tags
03, 2005, 2nd, bad, cobra, f150, ford, gear, gt, lifters, loss, motor, mustang, power, sound, ticking

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
Forum Jump

Advertising

Featured Sponsors
New Sponsors
All times are GMT -5. The time now is 05:01 PM.

© Internet Brands, Inc.

Powered by vBulletin® Version 3.7.1
Copyright ©2000 - 2009, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.2.0

This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. Ford® is a registered trademark of the Ford Motor Company