PT Cruiser Forum  
Advertisements
       

Go Back   PT Cruiser Forum > General Forums > Tech & Performance Forum

PT Cruiser Forum

Advertisements
engine overheating after fixing or rplacing everything

 
Like Tree1Likes
  • 1 Post By UptownSport

Reply
 
LinkBack Thread Tools Display Modes
  #1 (permalink)  
Old 23 Jul 2012, 10:19 pm
Fresh Cruiser
 
Join Date: Jun 2012
Posts: 7
Unhappy engine overheating after fixing or rplacing everything

At wits end with this car, 2003 PT base model had since new. I had the timing belt come apart at 90,000 miles, while that was being replaced I replaced the water pump all hoses and thermostat and radiator cap.
Last year I replaced the Radiator, Radiator fan and computer.
After I got the car back together it was overheating so I did a leak down test and found a broken head gasket which was replaced and new head bolts installed in the correct order and torque sequence.
I am still having over heating problems.
Head was checked with the DYE crack detection kit and no cracks were found.
Timing is set dead on.
Coolant system was bleed to get rid of all bubbles in the system.
IS there something I am overlooking??
Reply With Quote
  #2 (permalink)  
Old 23 Jul 2012, 10:54 pm
UptownSport's Avatar
Veteran Cruiser
 
Join Date: Jan 2011
Location: 55403
Posts: 3,910
Default Re: engine overheating after fixing or rplacing everything

New is New and Good is good.

When does it overheat?
Freeway speed, at idle /other?

Are there leaks? (You did look, I'm sure)

Is it using coolant?
Reply With Quote
  #3 (permalink)  
Old 24 Jul 2012, 01:27 am
Senior Cruiser
 
Join Date: May 2012
Posts: 1,354
Default Re: engine overheating after fixing or rplacing everything

Check out the CAT. If its not allowing the exhaust to exit, it can will heat the engine up right quick.
Reply With Quote
  #4 (permalink)  
Old 24 Jul 2012, 11:37 pm
Fresh Cruiser
 
Join Date: Jun 2012
Posts: 7
Default Re: engine overheating after fixing or rplacing everything

No Leaks anywhere. cat is working perfect, temp is 300 degrees hotter coming out than in.
It over heats about 1/2 an hour after its been running. didnt do this before I put the new thermostat in so I am thinking of trying another brand.
It will use about 2 cups of coolant in two days. doesnt seem like its drawing anything back from the overflow tank.
Reply With Quote
  #5 (permalink)  
Old 24 Jul 2012, 11:49 pm
Badglas's Avatar
Cool Cruiser
 
Join Date: Jul 2012
Location: Central Illinois
Posts: 493
Default Re: engine overheating after fixing or rplacing everything

Quote:
Originally Posted by 69daytona View Post
No Leaks anywhere. cat is working perfect, temp is 300 degrees hotter coming out than in.
It over heats about 1/2 an hour after its been running. didnt do this before I put the new thermostat in so I am thinking of trying another brand.
It will use about 2 cups of coolant in two days. doesnt seem like its drawing anything back from the overflow tank.
Check the hose between the reserve tank and thermostat housing for a leak. It won't show on a pressure test. Physically look at the entire length.

I had this happen on mine.

Because of the hole a vacuum could not be created to suck the coolant from the reserve tank back into the engine. When the coolant expanded most makes it to the reserve tank with a small amount lost daily through the hole.

Instead of replenishing the coolant from the reserve tank the engine sucks in air and creates an air-lock, causing an overheat.

Might not be your problem, but something to check and rule out.
__________________
2001 PT Cruiser Limited Auto Stock

"Political correctness is a doctrine, fostered by a delusional, illogical Minority, and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a Turd by the clean end". (R.J. Wiedemann Lt.Col. USMC Ret)
Reply With Quote
  #6 (permalink)  
Old 25 Jul 2012, 12:07 am
Fresh Cruiser
 
Join Date: Jun 2012
Posts: 7
Default Re: engine overheating after fixing or rplacing everything

Just thought of one more possible item, could the coolant going into the engine when the head gasket was bad have ruined the O2 sensors causing a lean condition that will make it run hot?
The end of the tail pipe is spotless on the inside. Just a thought.
Reply With Quote
  #7 (permalink)  
Old 25 Jul 2012, 12:16 am
UptownSport's Avatar
Veteran Cruiser
 
Join Date: Jan 2011
Location: 55403
Posts: 3,910
Default Re: engine overheating after fixing or rplacing everything

Cooling system is more than capable of dealing with any conceivable combustion situation.

You're losing coolant- Look at Badglas's suggestion & similar-
Or go back to Headgasket.
Badglas likes this.
Reply With Quote
  #8 (permalink)  
Old 25 Jul 2012, 01:11 am
Banned
 
Join Date: May 2011
Location: Dallas Texas
Posts: 3,723
Exclamation Re: engine overheating after fixing or rplacing everything

Been seeing alot of posts like this, this is one of the things that concerns me the most. There is nothing you can really do to prevent this
Reply With Quote
  #9 (permalink)  
Old 25 Jul 2012, 01:26 am
Senior Cruiser
 
Join Date: May 2012
Posts: 1,354
Default Re: engine overheating after fixing or rplacing everything

Easy head gasket checking method......thing.

After you have run the car a bit, shut it down, and let it cool until you can touch the top coolant hose without burning yourself.

Remove the radiator cap, and check the temp of the coolant to see that its not still hot hot.

Shove your finger WAY down in the thermo housing, and rub it in a circular motion all along the inside of the walls of the housing.

Pull finger out.

See any jelly looking substance on your finger? Head gasket is toast.

No jelly looking substance? Head gasket is okay :-D


What happens when you have a leaky HG, is it mixes the coolant with oil in the engine, this gunks up the coolant and although you cant see it but just looking in there , it usually leaves a jelly like film substance inside the thermo housing where it gets trapped by the thermostat itself :-)
Reply With Quote
  #10 (permalink)  
Old 25 Jul 2012, 10:17 am
Fresh Cruiser
 
Join Date: Jun 2012
Posts: 7
Default Re: engine overheating after fixing or rplacing everything

Not getting any oil film on the thermostat or coolant in the oil, did a radiator pressure test and all is fine there. Just need to check the burp tank hose to rule that out and check the O2 sensors since I know it was driven for 3 weeks after the timing belt was done with the head gasket leaking.
Also did a leak down test last night so no leaks from either side. Im glad I have my 70 Challenger and some antique cars to drive while I figure this out.
Love the simple old cars.
Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

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 On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Engine Overheating Issue norm123 Tech & Performance Forum 5 06 Jul 2012 11:44 am
Fixing PT After Accident littledragon_79 Exterior Accessories Forum 0 14 Aug 2010 02:36 pm
Engine overheating + P0551 = belt issue? crackdtooth Tech & Performance Forum 0 20 Jul 2010 10:31 pm
Fixing codes yourself Opiate General PT Cruiser Discussions 4 29 Oct 2004 09:00 am
Fixing a key scratch BPfromFLA General PT Cruiser Discussions 4 27 Jun 2004 09:34 pm


All times are GMT -5. The time now is 12:11 pm.




Powered by vBulletin® Version 3.8.2
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
LinkBacks Enabled by vBSEO 3.6.0 PL2 © 2011, Crawlability, Inc.
vB.Sponsors