Golf IV / Jetta IV :: 1.8t GLI Overheating / Coolant Light On
Mk4 Jetta Gli 1.8t , car was over heating only when sitting 5+ minutes at idle, mechanic said the big fan needed replaced so he replaced it. Car still over heated so i replaced the coolant with G13. It hasn't over heated yet but got in the car this morning and the coolant light started flashing and car was telling me to STOP the car. Checked out the coolant and it was on the low side. What it may be? Leak somewhere? Bad thermostat or water pump gone bad? Timing belt and water pump were done when i bought the car when it had less than 50k miles, car now has 99k miles on it.
View 7 RepliesGolf IV / Jetta IV :: Overheating - Temp Stuck At 190 Usually For About Ten Minutes Then Starts To Climb
I am trying to troubleshoot an overheating problem so that I may fix it myself. Not sure if it's thermostat, sensor, or a blockage.
'04 Jetta tdi with about 200k miles. Temp sticks at 190 usually for about ten minutes then starts to climb, varying between the 207-225F mark. Hasn't gone any higher, even in high 90sF ambient temps after 30mins driving. Holds fluid fine, pink G12 mix, and no bubbles or milky appearance to oil dipstick. Recently installed new AC compressor, txv and dryer so I imagine I can tackle thermostat or sensor if need be. Where to start?
Ford F-150 - 1997-2003 :: Overheating In Hot Weather - Restricted Coolant Flow?
I have an 1997 F150/4.2 V6/220,000 miles/4x2. During hot weather (over 90F) the engine slowly overheats. While driving on the interstate (from Indy to Fort Wayne), the coolant temperature shows normal on the gauge. Slowly the temperature gage creeps up to close to the red area. I am running the A/C.
When I switch the heater on and the heater fan at max, the temperature gauge drops pretty quickly to a normal range. I switch off the heater and the A/C back on, then it takes 30 minutes for the temperature gauge to start rising again.
When I open the hood when the gage shows close to the red area, the upper coolant hose has a lot of pressure (cannot squeeze it), which would mean that the thermostat is open and the waterpump is working. Also the fan is running fast. The coolant was changed out a few weeks ago and the coolant level is at normal level when the engine is cold. At lower ambient temperatures, there is no overheating. I am puzzled what the problem can be. I am thinking of a restricted coolant flow. Looking for solutions to my problem.
Golf IV / Jetta IV :: 2004 - Overheating - Coolant Leak?
My 04' GTI, 24v VR6, all stock, @ 107,000. I had a coolant leak from the t-stat housing. I installed all new housing, seals, and C-Pipe from GruvenParts. Already had a green CT sensor installed and the kit I got didn't come with one, so I didn't change it. Found out the leak was from the t-stat housing o-ring didn't fit the old housing. The new one fits perfect. I put coolant on the seals and burped it. Doesn't leak a drop. But still overheating, all the hoses have pressure and are hot, so no blockage....I noticed the fans were not coming on at all. The fans used to engage every other minute and run for 15 secs on high ONLY. Longer times, if not constantly w/ A/C on. I was wondering how to test the fans, sender, and/or fan control module to see which one of them isn't working. And which pinouts are what?
View 2 RepliesGolf IV / Jetta IV :: Overheating At Idle - Temp Gauge Starts To Climb To 3/4 Instead Of Halfway
I got a mk4 where the temp gauge starts to climb to 3/4 instead of halfway when I'm idling for a while.
1. fans don't come on
2. if I turn on ac, fan come on and temp stays at 1/2
I tested low and high speed on fans. both operational. Is it the fan control module, temp sensor green top, or radiator s/w?
Golf IV / Jetta IV :: Coolant Burning Smell - Car Overheating While Driving
Last night while i was driving my car began to overheat. I could smell coolant burning. I pulled over and opened my hood. The coolant inside the coolant pod was boiling. Some coolant lines were steaming as well. I could also hear a gurgly like noise coming the engine. This is a 1.8t gti
View 3 RepliesGolf IV / Jetta IV :: 2000 AWD 1.8t Overheating - One Side Of Coolant Line Hot
After finally getting some issues sorted this weekend (needed a transmission flush) I was driving around a bit to make sure everything was good. On the way back to my house, the car started overheating. I replaced the thermostat this winter (~4-5 months ago) because it was stuck open making things run a little cool.
I was thinking the water pump is probably shot but not 100% sure. the radiator fans both work and when I turn on the heater, it blows hot. Any good way to check if the water pump is dead? I have a little point and shoot infrared thermometer and one side of the coolant line was way hot and the other was fine (cold ~90 deg F).
Golf IV / Jetta IV :: 2004 Overheating - Radiator Cracked And All Coolant Leaked Out
Ok so I have an 04 Jetta 2.0 and lately it's been overheating on me. The first time it started overheating was because my radiator was cracked and leaked out all my coolant, I swapped the radiator everything was fine for a while. The second time I started overheating, I saw my primary fan was bad it wasn't spinning at all, I swapped it everything was fine for another while. I also changed the coolant temp sensor, it wasn't bad it's just because the coolant flange was leaking coolant, so I changed it a long with the O-Rings and sensor. I also changed the thermostat just incase that was the problem but it wasn't.
I don't think the fans are turning on by them selves when they have too, but either way the car still overheats when I turn on the fans manually with the A/C. I'm not sure if the coolant is circulating, as the car only begins to overheat when I come to a stop and it idles. I have a feeling it's the water pump but I wanna be sure it is before I change it. What it could be? Things that I should check for that usually go out?
Golf IV / Jetta IV :: VR6 Overheating / Coolant Warning Light Came On When Car Idling For 10 Minutes
Before I go buy a Bentley manual to dig around, when should my radiator fans kick on. I had the car idling for 10 minutes, no ac or heat on, and my coolant warning light came on, it overheated. It already has a new fan switch in the radiator, and the fuses are good.
View 7 RepliesGolf IV / Jetta IV :: 2001 - Engine Overheating - Coolant Temp Sensor Replacement
My temperature has been randomly dropping, them back to middle, and recently my engine was overheating because I'm guessing the fans didn't turn on, because I'm also guessing, the engine didn't know it was overheating?
Anywho, during my replacement, I made sure to get rid of the pressure, and the car was cold. I tightened the cap again, but when I took the sensor out, all the coolant spewed out.
Now if I understand this correctly, do I have a leak? I figured the leak I had was coming from the temp sensor as it is.
Here's some pictures for those who'd like to see ....
Golf IV / Jetta IV :: Overheating - Coolant Spraying Everywhere Causing White Smoke Under The Hood
I have a 2002 VW MK4 1.8t. It has 172,000 miles on it. Since i bought the car i have had to add coolant from time to time due to leaks from various plastic coolant parts so I replaced the crappy plastic connectors and flanges as they failed but it has never overheated till a couple days ago. It rose up to about 210'F but I didn't let it get to 260'F (aka the red zone).
While the temperature was up, the coolant was spraying everywhere causing white smoke under the hood. I stopped and looked under the hood and came up with the conclusion it was the coolant flange that holds the temp sensor since it was leaking coolant from the flange like a faucet hince the reason it caused it to overheat due to lost of pressure and no coolant in the system. So I replaced the part and gaskets then checked for other obvious leaks.
No leaks are shown nowhere else in the vehicle. So I added coolant to the car and let the cooling system do its magic as i left the heater on high. Let car idle with cap off and heater on for about 45 minutes. No signs of overheating. So I take the car for a spin and that's when the car starts heating up. I look under the hood and feel hoses and notice all are pressurized but top hose that leads to coolant flange is hot and the bottom hose connected to thermostat is cold.
I checked the return hose that leads up to the coolant reservoir to see if it's cycling and it appears it was. At low rpms the return hose had a steady flow and at high rpms it was flowing much rapidly. Which made me think it wasn't the water pump also this car with that many miles wouldn't have lasted with the plastic impellar this long if it wasn't already swapped out by previous owners. My question is what would cause it to still overheat? I forgot to note the fans did not turn on when the temperature was rising unless i turned the a/c on. But i still did a drive test with a/c on and it still overheated. I also did multiple burp cycles. I have invested alot of money in custom work and suck to leave it parked on the drive way.
Golf IV / Jetta IV :: 2004 GTI 1.8t Started Overheating - Little Steam Coming From Coolant Overflow Tank
I have an 04 gti 1.8t and last night it started over heating. I pulled over and checked the coolant and the oil but everything looked good. I let it cool down and drove it home. When I popped the hood there was a little steam coming from the coolant overflow tank but I saw no leaking. I decided to vent the pressure off the system and then I got a little drip on the passenger side close to where the inter cooler is. I can't pinpoint the leak though.
View 4 RepliesGolf IV / Jetta IV :: 2000 GTI VR6 - Coolant Leak / Smoke And Starts To Overheat When Idling
I have a 2000 vw Gti vr6. It leaks coolant smokes and starts to over heat when idling. Does fine when driving down the road. It has a new radiator. When pressure tested I can see a little stream of coolant coming out. But there's no space in the engine bay and I can't see exactly where it's coming from. Like I said it only happens when it's Idling for an extended period of time. It does fine going down the road.
View 3 RepliesCherokee :: 1995 Overheating - After 15 Minutes Of Idling Coolant Starts To Boil Up
Why is it that after 15 minutes of idling the coolant starts to boil up and spill and the car begins to overheat?
View 2 RepliesOverheating - Jetta - Volkswagen :: 2001 - Within 10 Minutes Starts To Bubble And Spit Out A Little Water Then Shuts Off
This is what its doing... Im starting to feel lost about whats wrong. I start it up and everything is fine. With in about 10 minutes it starts to bubble and spit out a little water then shuts its self off. And the gauge on the dash never reads above 190. And the fans don't come on unless i turn the ac on. And the ac still blows cold. The lower hose stays cold. I just replaced the thermostat and the water pump. But it changed nothing. Im thinking maybe its clogged somewhere. Maybe in the heater core or the radiator.
View 1 RepliesGolf IV / Jetta IV :: CEL Comes On - Insufficient Air Flow
So my check enginr light has been on for a while saying "po411" "insufficient air flow" but dont know where the vacuum leak is coming from. But today I was working under my car and saw this "hose" that is connected to the air pump looks like it's leaking??
View 3 RepliesGolf IV / Jetta IV :: All Of A Sudden Noises From Beyond The Head?
What is making this noise? car fired up fine this morning, drove it to work and once i exited the highway, idle started bouncing slightly and it seemed like the car was trying to compensate for something. every once in a while it will jump to 1000 rpm then try to settle but still the idle is choppy. and then there is this noise. Does not seem to the be the belts and to be honest I cant really pinpoint its location i think its loudest under the intake manifold. it sounds like a bad bearing to me but from where? O and I checked codes, nothing accept my regular emissions delete codes. I don't have immediate access to VAG-COM so that's out for the time being. also another detail, if i rev the car the noise does not seem to get any louder in fact it disappears mostly.
View 1 RepliesGolf IV / Jetta IV :: 2002 VW Does Not Start / Fuel Flow Restricted
The Symptoms: Car decided not to turn over for my son one morning, when I came home I tried with my key and the engine did turn over but immediately died.
Turned on key to power and watched for lights like the immobilizer/key but that came on and went off no problems there, did the same with both keys and the immobilizer/security key light went off fine.
Read for codes and there was a P0320 which pointed to Crankshaft Position Sensor. Order the part from good old Rock Auto and 2 days later it came, installed, cleared out the code, tried to start, did not start.
Decided to spray some starter fluid into the throttle body to get it to turn over in hopes a new code would come out.
It did fire up for a few seconds and did throw another code, this time P0321. That code points to the same sensor I just replaced.
Figured I would check to ensure the fuel pump and relay were working so I wired from positive and negative battery terminal to the outer plug clips at the fuel pump and I heard and felt it click. Not sure if it should prime and make more than just a click.
In my other cars you can clealy hear it prime for more than a second so not sure if the fuel pump is really the culprit here.
The car has 125K and the pump is original I can see.
I did check the relay fuse under the drivers side dash and I can feel/hear it click when I turn the ignition on.
I also did check all of the various fuses in the side compartment that have to do with the engine, they all look good and tested with multimeter as well.
So now I did order a new fuel pump, what else to try out? I did change the fuel filter at 100K so do not believe that is causing the issue. Not sure if the fuel regulator by the rail could be an issue.
It seems like all of a sudden fuel is not being delivered and with faulty injectors or plugs, they throw a code for misfire etc. Also starter seems to be fine, no griinding/smoke etc but was thinking about taking it out and over to Advance to have them check as well.
Golf IV / Jetta IV :: Sudden Shut Off / Not Turning Back At All
So I was driving down the road today and my car just shut off. No turning back at all. It is still trying to start. Battery is fine, terminals are fine, it acts like it wants to start but won't start. It's been running fine for a long time now. I think it may be the fuel pump. I'm going to take the fuel line out when I get home and see if it's getting fuel.
Door doesn't make the buzzing sound when you open the door. The car is also on air ride...