Guys I Really Need Help, 2003 Hyun Elantra Loss Of Power Big Time..,. - Hyundai Forums : Hyundai Forum
 
LinkBack Thread Tools
#1 Old 06-03-2011, 06:57 AM
Junior Member
 
Join Date: Apr 2011
Posts: 5
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
nafeasonto
(Thread Starter)
Guys at this point I do not know what is going on.

This is the following what has done to my car:

I did all this work, except when I indicate.

1. Spark plugs changed.
2. Wires changed
3. I changed my fuel filter
4. Cold air intake, on the intake with perfectly clean filter
5. Alternator is less the a year old
6. Battery is older, but not super old.
7. Water pump replaced and timing belt
8. Valve stems replaced (not by me)
9. Head gasket redone (not by me)
10. Compression test was ran and came out fine (not by me)

I have a humango loss of power when accelerating, and it's random. Sometimes I can accelerate nicely, other time I feel like the car just doesn't want to move. Especially on a roll, I just move like a snail.

Sometimes it's on a dead stop and it's completely random, other times it's constant. It makes no sense.

Also lately, out of NO where my car will start bucking for a few seconds, at the same time the check engine light (it's on due to a bad VSS for ABS ((but I don't have ABS)) will go off, my dash lights will go off, and the trans rpm will go down all the way. The car feels like it just will shut off, but it stops after a few seconds and the car regains power and the lights turn back on. I have NEVER seen this happen before. The transmission has never slipped and I have felt a bad tranny before, this is not it. THis seems like a power loss or short of some kinds. It's like half of the dash will go off. Pressing on the gas does NOTHING. It doesn't respond until it gets over it's "cough".

If my AC on forget about it. You see everyone at the traffic light passing me, and this is with almost me flooring the car. It's like my car goes down to 40hp. So I don't know what is going on.

The only thing electrical that I can personally think of that i have no replaced yet is the COIL PACK. HOWEVER I mentioned the Check Engine light before, I checked the codes everyday. NO NEW codes. Even after reset of the ECU (Disconnecting the batter) the light will come on for the same code.

So wtf is going on, anyone know why the car is suffering a great deal loss of power?
nafeasonto is offline  
Sponsored Links
Advertisement
 
#2 Old 06-03-2011, 09:22 AM
senior member
 
wymi's Avatar
 
Join Date: May 2007
Location: Chicago, Illinois
Drives: Hyundai & KIA
Posts: 3,783
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
wymi is an unknown quantity at this point
OTTOMH, possibly shorted crankshaft position sensor or clogged catalytic converter.

wymi is offline  
#3 Old 06-03-2011, 09:48 AM
Junior Member
 
Join Date: Apr 2011
Posts: 5
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
nafeasonto
(Thread Starter)
what does OTTOMH mean?
lol

The CAT on the exhaust line as replaced. If it's the front CAT then i am REALLY screwed. That is REALLY expensive, I can do it myself with a few cuss words, it's getting the part is the issue.

But i am going to start the cheap way and replace the Crankshift sensor first. I'll keep you updated. Thanks!
nafeasonto is offline  
#4 Old 06-03-2011, 10:37 AM
senior member
 
wymi's Avatar
 
Join Date: May 2007
Location: Chicago, Illinois
Drives: Hyundai & KIA
Posts: 3,783
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
wymi is an unknown quantity at this point
OTTOMH = Off the top of my head

wymi is offline  
#5 Old 06-04-2011, 09:46 AM
Junior Member
 
Join Date: Apr 2011
Posts: 5
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
nafeasonto
(Thread Starter)
I replace the sensor. There is no random jerking anymore thanks for that.

However, what I have noticed is this if it's HOT out. And once the car gets hot to it's normal operating Temp. The acceleration sucks. When it's cool, the acceleration is great. What would be causing this at this point if so much has been replaced and fixed. Would the car acclerate like crap at hotter weather because of the front CAT, I don't see how that makes sense?
nafeasonto is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Hyundai Forums : Hyundai Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
User Tag List

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may post new threads
You may 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 On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome