mroe cooling problems - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

wren240sx · 01-22-2003, 06:56 AM

i just got done changing the thermostat, and my gauge isnt pegged on hot anymore, but whenever im at an idle or just cruising at 30mph or slower, the temp rises slowly till its close to hot. I bled the air pressure out, and i know i have a bad radiator cap, could the cap be it? i pressure tested the system and its working fine. any ideas?

**mrmephistopheles** · 01-22-2003, 07:24 AM

Eliminate all options when it comes to part replacement. Cooling system is not something you want to skimp on... More than likely it IS your bad cap.

wren240sx · 01-22-2003, 08:10 AM

alright thanks for the info. any other ideas appreciated!

Dream240 · 01-22-2003, 08:27 AM

How many miles do you have on the engine? Have you had a system flush done on it lately?
Check your upper and lower hoses also, cause if these are old and have some clogging in them then they will definitely cause you to heat up.

wren240sx · 01-22-2003, 08:30 AM

i got 140,000 miles on this engine. it was flushed a year ago, book says every 2 years but ill try that too

gregsr20 · 01-22-2003, 09:07 AM

try replacing the thermostat again, i had the same problem, i replaced the thermy first, hoses and eventually the radiator, on a hunch, i decided to check the thermostat again, and sure enough it was stuck

01-22-2003, 06:56 AM	#1
wren240sx Leaky Injector Join Date: Jan 2003 Location: gulfbreeze, fl Age: 42 Posts: 102 Trader Rating: (0) Feedback Score: 0 reviews	mroe cooling problems i just got done changing the thermostat, and my gauge isnt pegged on hot anymore, but whenever im at an idle or just cruising at 30mph or slower, the temp rises slowly till its close to hot. I bled the air pressure out, and i know i have a bad radiator cap, could the cap be it? i pressure tested the system and its working fine. any ideas? __________________ 1991 240sx se red w/ big #$* dent in it!! 5 speed injen cai apexi n1 dual unorthadox pulley set oh yeah and a blown motor

01-22-2003, 08:10 AM	#3
wren240sx Leaky Injector Join Date: Jan 2003 Location: gulfbreeze, fl Age: 42 Posts: 102 Trader Rating: (0) Feedback Score: 0 reviews	alright thanks for the info. any other ideas appreciated! __________________ 1991 240sx se red w/ big #$* dent in it!! 5 speed injen cai apexi n1 dual unorthadox pulley set oh yeah and a blown motor

01-22-2003, 08:27 AM	#4
Dream240 Nissanaholic! Join Date: Dec 2002 Location: Inland Empire, California Age: 46 Posts: 2,188 Trader Rating: (8) Feedback Score: 8 reviews	How many miles do you have on the engine? Have you had a system flush done on it lately? Check your upper and lower hoses also, cause if these are old and have some clogging in them then they will definitely cause you to heat up. __________________ Don't mess with my monkey...he's loaded.

01-22-2003, 08:30 AM	#5
wren240sx Leaky Injector Join Date: Jan 2003 Location: gulfbreeze, fl Age: 42 Posts: 102 Trader Rating: (0) Feedback Score: 0 reviews	i got 140,000 miles on this engine. it was flushed a year ago, book says every 2 years but ill try that too __________________ 1991 240sx se red w/ big #$* dent in it!! 5 speed injen cai apexi n1 dual unorthadox pulley set oh yeah and a blown motor

01-22-2003, 09:07 AM	#6
gregsr20 Zilvia Member Join Date: Jan 2003 Location: SAVANNAH, GA. Age: 42 Posts: 155 Trader Rating: (0) Feedback Score: 0 reviews	try replacing the thermostat again, i had the same problem, i replaced the thermy first, hoses and eventually the radiator, on a hunch, i decided to check the thermostat again, and sure enough it was stuck __________________ fast cars are dangerous, save lives drive HONDA'S

01-22-2003, 07:24 AM	#2
mrmephistopheles Magnanimous Justice Distribution Service Join Date: Mar 2002 Location: BFE Age: 23 Posts: 14,372 Trader Rating: (9) Rides Gallery: mrmephistopheles Feedback Score: 9 reviews	Eliminate all options when it comes to part replacement. Cooling system is not something you want to skimp on... More than likely it IS your bad cap.