Had my civic for a few months now, traded my integra. Well the car has been running really good so far, i even found receipts for brand new timing belt waterpump radiator and cap with a brand new thermostat, those were all dated in october last year 2013 a month before i got the car. But today it overheated randomly today i traffic. To help both my fans are working properly, i do have coolant, i havent bleed the system myself but thats first on my list as soon as i get out of class. What else could be the culprit to my overheating and does anyone have suggestions on what to do next.

If you guys need more info just ask and i can try inform as much as possible.

 

Comn yall 44 views 0 replies. Anyone ever had this problem or one similar?

 

 

Year and model? Manual or automatic transmission? Any CEL's?

Any leaks that might indicate a blown head-gasket? Check oil look for brownish-sludge.

 

How do both radiator hoses feel? What brand thermostat did they use? Report back after bleeding. You also may want to checkout buying a block tester in case nothing pans out as the previous owner may have had further issues after replacing what they did and decided to sell.

 

Fml but yeah. Well since wednesday the car tends to overheat after an hour of driving and idleing. On thursday my wife was on her way home and she said she noticed it getting hot and she went over a bump and it went right back down. So Friday i went to napa and a worker suggested i replace the temperature sending unit to the gauge the thermister underneath the dizzy. Had that replaced thought everything was fine and today after going into town in the parking lot it started to get hot, went to my nephews first bday and drove it back no overheating. So irritating.

I have already burped the cooling system by jacking it up and running the car and constantly topping it off.

The car is a 99 civic sedan automatic with the stock y7 motor. 150k miles. With no cel.

Im not sure what brand thermistat it is at the moment.

But tomorrow my buddy is going to come over he has the block tester kit so we shall see, i also plan on pressure testing the cooling system tomorrow at oreillys.

I really hope its not headgasket but if it is, how long would it take to do a head gasket and what else should i replace along with it.

Thanks in advance, im praying its not headgasket, its our only car at the moment

 

On a side note i have been checking my oil and it hasn't risen, nor milky and sludgy. There also isn't any white smoke coming out of my tailpipe and my car doesn't seem to be running rough. No external leaks from what i can see, no need to keep adding fluid. My water pump seems to be working fine, i see the water cycling in the radiator while its running. But tomorrow i shall see whats up hopefully.

 

If it's a blown head gasket you'd see hella white smoke from your tail pipe, and possibly oil in your coolant. Did you get on the gas hard on a really cold engine? Could be a cracked head too.

And I can only think fan circuit related otherwise.. Something is making the fan switching of and on randomly... based on the bump thing..

 

Well well well, my friend and i did the combustion leak tester, you know the blue liquid that turns yellow over the radiator if there head gasket issue, and sure enough i have a head gasket breach. So i have no choice to run um hard just for this week and do the head gasket next weekend. Im kind of on a budget so whats the bare minimum that i should change and replace.

Also this is my first HG job so anybody have tips before i start.

 

It's somewhat of a big job. Mechanics will charge close to $1000 to do it, This video is a three part so you can go on his channel and find 2 & 3. Good luck

 

That video was anything but informative more entertaining id say, that dude was doing a hack job on that civic,using a wrench to whack the belt off is not good, but thanks anyway lol.

 

My bad for the odd video... At least we know it was hack job of sorts but you get the general idea. LOL!!

There's DIY on clubcivic. Just google DIY D series head gasket. I'm not sure if one's on here & I'm also not sure if it's against the rules to post another forums link

 

Has anyone ever done a HG job on their d series without getting the head resurfaced and never had any problems? I plan on doing the job myself only going to replace what comes in the HG kit and brand new head bolts, dont really have time and money to get the head resurfaced.

 

Not checking the level of the head and block mating surfaces is extremely risky. Checking for warpage is easily done with a precision straight edge, so why risk it?

 

Does sears carry those strait edge rulers

 

Not sure, but I'd assume they would.

You need something like .

Here's a diagram showing how to check for warpage.

https://honda-tech.com/forums/showpo...4&postcount=20

 

I just did a hg job for a friends d series engine and it wasn't too bad. Just pull off all the hoses and wires from the cylinder head and intake (I recommend taking a pic), separate your exhaust manifold from the head, pop off your valve cover and on the d15 all ten headbolts were right there. You are gonna need to really clean the gasket off the exhaust and the old head gasket. That is the hardest part I think. Check the head for straightness and get it milled if its no good. Then just put it all back together. You need a torque wrench for the new headbolts (new ones are recommended and I hear apr is the brand to go with) and you need to follow a torquing pattern from the FSM. All in all its like a days worth of work max if you don't run into complications. Just make sure you have new exhaust gasket, new head gasket, new headbolts, and maybe a new valve cover gasket if yours is old. I may have missed some stuff but this should help you get an idea what to look forward to. I didn't think it was tooooo hard and I am kind of a mech noob. Good luck!

 

Not hard, time consuming. What I worry about is the fact that they just changed the timing belt and water pump just recently and then decided to get rid of the car as if something was gonna happen. It could've overheated before. You will definitely need to check for warpage on the block and on the head. Lowes, Home Depot and Sears do not sell a machine straight edge so you will have to order one or run down to a machine shop and have them make you one. Also make sure that clean the surface if any of the head gasket material is stuck on the head or block. Also get some copper gasket sealant for the head gasket.

 

When my z6 was running hot it would only do it about 2 hours into driving. I live in fl too so it gets pretty hot inter summer. But I did the block test and sure enough it was the hg. So when I started taking the head off I noticed that the number 1 head bolt wasn't even tight. But I went ahead and replaced it since I had already bought all new gaskets. And I didn't get my head checked. I used a metal filer and gently went across the head and block and of course scraped away the old gaskets first. Took about 3-4 hours. And it has run perfect ever since. But popped the cv off and check your head bolts.

 

And yes, don't reuse the head bolts.

 

I used this too! Worked great. And it was alittle extra piece of mind since I didn't get the head or block checked for warpage

 

Hey guys thanks for the tips and advice. I started tear down yesterday, removed the intake manifold from the head so far only had about an hour to do it sun was going down thats why. Really need to get this done before the weekend because i have plans. Also even thou im not there yet, but when i put the new HG and put the motor back together, is there a break in process or a certain way i drive?

 

Not that i know of or did. Just make sure it's at TDC before u remove tha head..

 

I did 3 like this my wifes 98 civic 1.5, my 94 civic 1.6 and a my 93 Del Sol 1.6 about 6 hours this way and only had to replace head gasket. Worked all three times, only cost me 38 bucks and about 6 hours on a Saturday. Well worth the risk.... sadly my current problem is going to be a bit more of a problem since it involves the long block which i dont have as much exp in.

 

Chee doggy, just got done doing the head gasket, fully started yesterday got as far as putting the head back on with the new gasket, finished buttoning up everything today and im pleased to say that she runs, started up first crack and idle nice. Happy and proud with myself. Thank you all for your tips and advice.

The job isnt really hard its pretty strait forward, and if you have a good tool set its definately worth doing instead of taking it to a shop, and them charging you around a grand in parts and labor.

I reused my head bolts they looked fine, i didnt have time to take it to a machine shop, but i did my best to clean the mating surfaces as best as possible. I also used that copper head gasket spray, i like it made the gasket really tacky for a better seal, also i didnt bother taking off the lower timing belt cover, just losend the tensioner, and slipped the belt off, and when it came time to retension the belt i got a wire hanger and had my brother pull on the tensioner lever while i tightened it up.

Cheers