bleed coolant system after draing/flush/fill ? - Ford Mustang Forum
 
LinkBack Thread Tools
post #1 of 4 (permalink) Old 03-04-2011 Thread Starter
Rookie
4.6L Member
 
STANGonBLOCKS's Avatar
 
Joined: Jan 2010
Location: Youngstown
Posts: 46
 
bleed coolant system after draing/flush/fill ?

Do i need to bleed the coolant system after drain/flush/filling it ? Had my cracked intake manifold replaced at a shop, they filled it with new antifreeze. After my test drive on the freeway and a little running around, I let the car cool and I checked the coolant. Coolant was about 3 inches lower than the add coolant bottom arrow on the plastic coolant tank. I also found a piece of black plastic floating in the reservoir(about the size of a pencil eraser) Why was this so low ? Should or did they bleed the coolant system ? Could this have caused damage to my engine by driving it with coolant SO LOW ? Any help would be great.......I dont feel very confident in their job now ..... lol

2003 Mustang GT
4.6L V-8 SOHC
5 Speed Manual(Tremec 3650)
K+n air filter
STANGonBLOCKS is offline  
Sponsored Links
Advertisement
 
post #2 of 4 (permalink) Old 03-04-2011
Apprentice
4.6L Member
 
GMONEY87's Avatar
 
Joined: Aug 2010
Location: San Antonio
Posts: 134
 
when you drain/fill any cooling system, the coolant will always drop a bit after the first ride around. They topped it off and it dropped due to the engine cyling the coolant. Top it off one last time and it'll stay full this time. you dont need to bleed the system, but you do need to burp it. fill it up and pinch the middle of the upper radiator hose, this removes air pockets from the system.

1998 Mustang GT

MAC CAI, MAC O/R H PIPE, FLOWMASTER 40's, BLUE FRPP 9MM WIRES, TRICK FLOW 75MM UPPER PLENUM, 73MM TB, BBK STRUT TOWER BRACE, HURST PISTOL GRIP, WHITE FACED GAUGES, MATCHING SPEEDHUT OIL PRESS. AND WATER TEMP. GAUGES IN A FRPP DUAL POD A-PILLAR, BILSTEIN STRUTS, KONI SHOCKS, H&R SUPERSPORT SPRINGS, DNA REAR UPPER/LOWER CONTROL ARMS, 18'' CHROME Y2K'S, MICHELIN 295/35 AND 275/40 PILOT SPORTS, KENWOOD HEAD UNIT, PLANET AUDIO 1000W AMP AND 10" MEMPHIS SUB :nogrinner
GMONEY87 is offline  
post #3 of 4 (permalink) Old 03-06-2011
SHELBY GT 350 Member
 
wmburns's Avatar
 
Joined: Sep 2010
Location: Houston
Posts: 5,396
       
+1 on above. Dropping coolant level after 1st heat/cool cycle is normal.

Gennerally the 4.6 SOHC motor will self purge the air from the cooling system after a few heat/cool cycles. If not, it almost always means there is a leak or combustion gases are entering the cooling jacket.

The DOHC and V6 OHV engines WILL OVERHEAT if the coolant refill procedures are not followed and all of the air is removed.

The DOHC is especially difficult to remove all of the air from the cooling system. The procedure is time consuming requiring multiple steps and heat/cool cycles. For that reason, the dealer will use the vacuum refilling method (saves time).

2003 GT Convertible (sold & missed)
2000 GT coupe (Craigslist project. Fixed. Now my DD). Windsor to Romeo swap.
wmburns is offline  
post #4 of 4 (permalink) Old 05-06-2011
Rookie
 
sicknick530's Avatar
 
Joined: Feb 2011
Location: Grass Valley
Posts: 4
 
So, pinching the upper hose will remove any bubbles stuck in the heater core?

Quote:
Originally Posted by STANGonBLOCKS View Post
Do i need to bleed the coolant system after drain/flush/filling it ? Had my cracked intake manifold replaced at a shop, they filled it with new antifreeze. After my test drive on the freeway and a little running around, I let the car cool and I checked the coolant. Coolant was about 3 inches lower than the add coolant bottom arrow on the plastic coolant tank. I also found a piece of black plastic floating in the reservoir(about the size of a pencil eraser) Why was this so low ? Should or did they bleed the coolant system ? Could this have caused damage to my engine by driving it with coolant SO LOW ? Any help would be great.......I dont feel very confident in their job now ..... lol
sicknick530 is offline  
Sponsored Links
Advertisement
 
Reply

Tags
bleed , coolant , flush , intake , system

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Ford Mustang 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:
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, otherwise you will not receive the necessary confirmation email needed to confirm, validate and activate your new AFM member account.

Failure to provide a VALID email address, will result in the cancellation of your new AFM member account registration.

Email Address:
OR

Log-in









Random Question

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 Off
Pingbacks are Off
Refbacks are On

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


1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183