slowDB1

so i have a 1994 ex 4 door, still has the stock d16z6 in it and is completely stock except for suspension wheels and aem intake, ive had problems with it overheating, the expansion tank lid had a crack so i changed the cap, also replaced the head gasket, new thermostat, radiator, hoses, and coolant in the car as well. but still after a long drive it starts to overheat when in traffic or stopped, then once get going goes back to normal temps again..and also the car gets terrible terrible gas milage, only 100 miles per half a tank, has new fuel pump, filter, and canister too..what could be causing the bad gas milage, and i dont beat the car or drive fast at all either, hopefully someone can help me with these problems

slowDB1

over 250 views and no one has an idea? i think i got the overheating fixed by bleeding the system the rite way, but my gas mileage still sucks ***

jbpnoman

Plugs, wires, cap, rotor, fuel filter. When was the last time you replaced any of them?

slowDB1

all of that has been replaced within the last month..i think i hear a slight exhaust leak but i don't that that would affect it or if it does that much..

jbpnoman

Considering how horrible the stock fuel gauge is, do a test for us. Completely fill your tank, and reset your trip meter. Drive until ~1/4 tank is left, then refill. Divide trip meter reading by gallons in the second fill. That'll give us a more accurate number to see if there's actually a problem.

slowDB1

already doing that lol..i think either today or tomorrow ill be refeuling most likely today with how much i drive

slowDB1

well it said it was at a 1/4 so i went to the gas station and pumped 6.3 gallons and i had gone 206 miles, so i guess the guage just really sucks in this car..cuz thats almost 33mpg

jbpnoman

Yep, our gauges suck, that's just how it is, and they aren't all the same. I get 200 miles out of my first half tank, and I'm lucky to get 150 out of the second half.

Well, on the plus side, at least you don't have to worry about it anymore

Swap'DShuttle

From my experience in my Wagovan, the gas gauge is pretty accurate above half a tank. Get under half or 1/3 and it will get pretty wild. Sharp corners make it fluctuate as well as hills.

jbpnoman

That's because we don't have baffled tanks in our Hondas. The fuel just sloshes around inside the tank wherever centripetal and gravitational force takes it, which can confuse the fuel meter. It's great fun taking a hard sloping off/on ramp, losing a quarter tank of fuel, and watching most of it come back a couple minutes later.

Swap'DShuttle

I hate that! Especially when Im a ways from home and have limited gas funds. Im like wtf! How'd I just burn a quarter tank! Lol Didn't know no baffles.

OP car still overheating or was that fixed?

redm3turbo

it may be my imagination but my car seems to get better mpg when its near full, then when near empty.

I hardly ever get her below 3/4 unless im on a long road trip. For the most part it gets high 30's and when she gets under 1/2 a tank it seems to be a lot less. then again here in ny you never know when your getting stuck in a 4 hr traffic jam so i never chance it getting low, and therefore never accurately measure it.

94preludeguy

I've gotten anywhere from 33-39mpg with my Z6 on the highway. Stupid gauge pisses me off all the time too haha. First EG I bought I didn't know they weren't equipped with low fuel lights.

slowDB1

its like somewhat fixed i guess ud call it, only after really long trips it will get hot when stopped, i can drive it in short trips all day long but once i get on the highway for like a 100 miles then hit the city it dont like stopping

Swap'DShuttle

Have your radiator flushed and check your timing. Possibility that your ignition timing is a bit retarded? Thermostat also sounds like it might not be opening all the way.

slowDB1

everything has been flushed and timing is correct, also thermostat is new, is there a certain angle maybe the thermostat needs to be?? cuz i just popped it in there..

slowDB1

ok well today i figured something weird out, the car overheats when stopped and in drive, but when i put it into neutral or park the temperature starts to go back down..what the hell could be causing this?

Former User

Where is your needle when you think the engine overheats?

slowDB1

well my needle is usually near like 1/4 the way up but when i sit for a period of time in drive it goes all the way up to the red, and as soon as i start driving it goes back to normal, today it was on its way up and i put the car in neutral and it started going back down..idk what could be causing this..

Former User

Sounds like the radiator fan is not running.

Swap'DShuttle

No hate man but you're asking to have to do a head gasket soon. Don't let it get that hot! Like just stated, make sure your fan is kicking on.

TannerVtCoupe

im going threw the same thing i flushed the ratiator did a head gasket and bled the cooling system jst to find out the kid i got it from warped the head. so im working on swapping my valve train and cam and gurtle over to a new head. its a d15b7

grumblemarc

iTrader: (4)

Gurtle-girdle.

slowDB1

i literally just had head gasket done 2 weeks ago and the head was resurfaced when it was done as well, coolant flushed..and the fan is on, its only when the car is in drive, idk i bled it out last night and it was fine today but i didnt take a super long drive. im about to get my old db1 back and say fck this car..

slowDB1

well fixed the problem, replaced the coolant tank with a new one, bled the system really good and no more problems..the automatic is killing me but so far its a decent car