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Old 04-04-2016, 10:46 PM   #1
Imported209
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02 Sti swaped wrx
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Default Overheating issue Right after installing fuel pump?

02 wrx, 2.5 hybrid swap
perrin intake, turbo inlet, stock turbo (for now), downpipe, uppipe, MBC,
mishimoto aluminum Rad. and prob alot more I forgot to list.

now that that is out of the way, the issue im having is I was installing a walbro 255 fuel pump and right after I completed it with minimal issues fitting all the lines back in and getting the whole thing back in the tank and connected, I prime the Fuel Pump a few times to make sure it gets gas to where it needs to go and i start the car and let it idle. shortly after its warm and i finish my smoke break I go in the car to take a trip to the store and Bam, i notice that my temp gauge is about 3/4 the way up and sloowwwwwly rising. I drive very shortly and notice that the temps are going down and its fine again. i get to said store and i try to recreate what happened and it didnt do it. so later on in the day ( wasnt hot at all today) I went to work and I noticed as I was in the parking lot smoking again my temps started to slowly rise up again. checked the fans and they are working while this is happening. I look in my cooleent overflow tank (white/clearish tank on drivers side) and its between between the two markers. any ideas? Its never done this before and I cant possibly think of anyway it could be related to the fuel pump but who knows? it did happen right after..thanks in advance for the help.
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Old 04-05-2016, 07:04 AM   #2
Imported209
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02 Sti swaped wrx
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good morning bump. odd issue im having here
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Old 04-05-2016, 08:26 AM   #3
danger1138
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Could be just a coincidence.
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Old 04-05-2016, 08:53 AM   #4
Imported209
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02 Sti swaped wrx
WRB

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Quote:
Originally Posted by danger1138 View Post
Could be just a coincidence.
That's what I'm thinking too. I have a feeling it's a totally unrelated thing. Soo that being said here is an update. I got off work tonight and decided to try and do some troubleshooting. What I found is:

Car overheats at idle with out heater on, with heater on the stock gauge moves a little and blows ambient air. Not hot at all.

While driving the car doesn't overheat really..just the gauge moves a bit. But it's worth noting that with the heater on it stays slightly cooler on the gauge and blows really hot air. The off time it starts to creep up on me the heater blows that same cool ambient air. Any help is greatly appreciated.

While driving with heater on
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Old 04-05-2016, 12:21 PM   #5
quazimoto
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When was the last time the coolant was changed or the thermostat replaced?
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Old 04-05-2016, 08:16 PM   #6
HinshawWRX
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Thermostat is stuck, replace it.
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Old 04-05-2016, 10:08 PM   #7
Imported209
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Quote:
Originally Posted by HinshawWRX View Post
Thermostat is stuck, replace it.
had the same idea.
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Old 04-05-2016, 10:43 PM   #8
Imported209
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02 Sti swaped wrx
WRB

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ill be replacing my stock turbo here in a week. looks like ill do it then. thanks guys! ill update this if thats the fix. anything else i should be on the look out for?
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