 Overheating on the highway. 76, 2.0 |
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| SVG223 |
 Jun 5 2022, 10:59 PM
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#1
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Member  Group: Members Posts: 113 Joined: 6-February 22 From: Benton Arkansas Member No.: 26,317 Region Association: None  |
My 914 overheats on the highway. I had concerns about the air flap, but I think the thermostat has broken and it stays in the open position. I thought something might be clogging the fan but it looks clear. I wonder about the heater air hose that goes over the motor. It could be blocking some air possibly. I may try to tie it out of the way. After exiting the highway and stopping at a stopsign the idle was extremely low, I was surprised it was still running. I turned the engine off for a while and it ran better after it cooled down. Any ideas would be appreciated.
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| mgphoto |
Jun 6 2022, 11:02 AM
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"If there is a mistake it will find me" Group: Members Posts: 1,375 Joined: 1-April 09 From: Los Angeles, CA Member No.: 10,225 Region Association: Southern California |
QUOTE(SVG223 @ Jun 5 2022, 09:59 PM)  My 914 overheats on the highway. I had concerns about the air flap, but I think the thermostat has broken and it stays in the open position. I thought something might be clogging the fan but it looks clear. I wonder about the heater air hose that goes over the motor. It could be blocking some air possibly. I may try to tie it out of the way. After exiting the highway and stopping at a stopsign the idle was extremely low, I was surprised it was still running. I turned the engine off for a while and it ran better after it cooled down. Any ideas would be appreciated. Does the engine have a catalytic converter? Clogged converter will create back pressure causing overheating. ‘76 my in California had them. |
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| SVG223 |
Jun 6 2022, 05:44 PM
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#3
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Member Group: Members Posts: 113 Joined: 6-February 22 From: Benton Arkansas Member No.: 26,317 Region Association: None |
QUOTE(mgphoto @ Jun 6 2022, 11:02 AM) QUOTE(SVG223 @ Jun 5 2022, 09:59 PM) My 914 overheats on the highway. I had concerns about the air flap, but I think the thermostat has broken and it stays in the open position. I thought something might be clogging the fan but it looks clear. I wonder about the heater air hose that goes over the motor. It could be blocking some air possibly. I may try to tie it out of the way. After exiting the highway and stopping at a stopsign the idle was extremely low, I was surprised it was still running. I turned the engine off for a while and it ran better after it cooled down. Any ideas would be appreciated. Does the engine have a catalytic converter? Clogged converter will create back pressure causing overheating. ‘76 my in California had them. Yes, it does. I found a receipt where it was replaced in 2005 or so in California. I wouldn't mind being rid of it. I'm not sure how to check the back pressure. |
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Posts in this topic
SVG223 Overheating on the highway. 76, 2.0 Jun 5 2022, 10:59 PM
Superhawk996 Did it actually go into the red zone? If not then... Jun 5 2022, 11:38 PM
SVG223
Did it actually go into the red zone? If not the... Jun 6 2022, 12:17 AM JamesM This could be SO many things its hard to find a pl... Jun 5 2022, 11:39 PM Superhawk996
This could be SO many things its hard to find a p... Jun 5 2022, 11:44 PM SVG223
This could be SO many things its hard to find a p... Jun 6 2022, 12:28 AM JamesM
This could be SO many things its hard to find a ... Jun 6 2022, 02:11 AM SVG223
[quote name='JamesM' post='3006792' date='Jun 5 ... Jun 6 2022, 12:40 PM JamesM
There's a little wear on second gear synchro ... Jun 6 2022, 09:06 PM wonkipop
This could be SO many things its hard to find a p... Jun 6 2022, 02:59 AM JamesM
i got one of those them there grommets on my engi... Jun 6 2022, 10:43 AM wonkipop
i got one of those them there grommets on my eng... Jun 6 2022, 04:39 PM Superhawk996 Location?
Ambient temperature?
Speed driven, wha... Jun 6 2022, 01:12 AM SVG223
Location?
Arkansas
Ambient temperature?
80f
Speed... Jun 6 2022, 11:58 AM JamesM My gut (and my eyes with limited pictures) are tel... Jun 6 2022, 02:25 AM 76-914 As James said that is the oil temp. Porsche actual... Jun 6 2022, 08:07 AM SVG223
As James said that is the oil temp. Porsche actua... Jun 6 2022, 05:50 PM emerygt350 The other symptoms point to something out of the o... Jun 6 2022, 09:41 AM Superhawk996
The other symptoms point to something out of the ... Jun 6 2022, 09:48 AM SVG223
The other symptoms point to something out of the ... Jun 6 2022, 06:18 PM Chaznaster
The other symptoms point to something out of the ... Jun 6 2022, 06:56 PM Superhawk996 Here's the weekly posting of oil temperature g... Jun 6 2022, 09:41 AM wonkipop
[quote name='mgphoto' post='3006885' date='Jun 6 ... Jun 6 2022, 07:08 PM emerygt350 Good call. Never even thought about that. Jun 6 2022, 11:12 AM Superhawk996 Based on info above I'm more convinced that so... Jun 6 2022, 12:17 PM SVG223
Based on info above I'm more convinced that s... Jun 6 2022, 10:59 PM brant Also wanted to ask which front spoiler or valance ... Jun 6 2022, 01:49 PM wonkipop @SVG223
hey thats a good looking car you got hol... Jun 6 2022, 04:31 PM emerygt350 1- ODYR/SLX-11-1--BLUE-K - Cylinder Head Temperatu... Jun 6 2022, 07:37 PM FlacaProductions
1- ODYR/SLX-11-1--BLUE-K - Cylinder Head Temperat... Jun 7 2022, 09:32 AM Chaznaster
1- ODYR/SLX-11-1--BLUE-K - Cylinder Head Temperat... Jun 8 2022, 05:40 PM mgphoto Remove the cat, there is an after market bypass pi... Jun 6 2022, 10:52 PM Lockwodo Don't know if anyone else has mentioned this, ... Jun 7 2022, 01:37 PM emerygt350 That's a Porsche/diff type thing. Our fans ar... Jun 7 2022, 03:11 PM piscean914 i would start by confirming the oil temp in the su... Jun 7 2022, 11:59 PM rhodyguy Delete/Replace the cat converter and clean the oil... Jun 10 2022, 07:50 AM SVG223 I think the ignition timing has been retarded by a... Apr 9 2023, 06:58 PM Superhawk996
tried to get it to ping but it didn't so I n... Apr 9 2023, 07:47 PM SVG223
tried to get it to ping but it didn't so I ... Apr 9 2023, 09:51 PM VaccaRabite
[quote name='Superhawk996' post='3070615' date='A... Apr 10 2023, 09:44 AM SVG223
[quote name='Superhawk996' post='3070615' date='... Apr 11 2023, 10:43 PM VaccaRabite
I hear no pinging under load I may have guessed ... Apr 12 2023, 06:24 AM SVG223
I hear no pinging under load I may have guessed... Apr 12 2023, 07:27 AM VaccaRabite Just clearing out all the crap on top of the oil c... Apr 12 2023, 11:30 AM 930cabman Has a "high temperature" ever been confi... Apr 13 2023, 06:37 AM |
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