Whats wrong with my car?
#1
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Car: 86 Iroc-z/ 98 Grand Prix GTP 2dr
Engine: 305...for now/ Supercharged 3800 V6
Transmission: 700R4/ 4T65E-HD
Axle/Gears: 3:23 / 2:93
Whats wrong with my car?
Hello, im a new member on this site and I hope someone can help. I wanted to know what is wrong with my car (86 Camaro 5.0 V8). First off the car runs fine but after about 30 min of driving the overflow tank starts boiling after I turn the car off? Also when I go to start it up a puff of white smoke comes from the exhaust then it goes away shortly after but it has a disgusting smell for a few seconds after start up. Today when I was driving the car seemed like it didnt want to shift right then all of a sudden it shifts normal? Also the car doesnt start right away but when it does the idle is low but after I start driving it it's fine. I check my radiator everyday and the antifreeze level is always the same and it doesnt spit out fluid when the cap is off and the car is on. Like I said the car has no loss of power and it runs fine. I hope it isn't anything major but please let me know what you think.
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Car: 1992 Camaro
Engine: small block chevy 355/300hp
Transmission: 700r4
Re: Whats wrong with my car?
Sounds like a small head gasket leak (or worse crack) and when your motor heats up the metal expands and starts sucking in small amounts of fluid to burn off. also sounds like its near a exhaust port seeing it is boiling your overflow tank. As for the loss in power would think your fowling out the plug good way to find out what cyl it is pull the plugs look for the one that fouled
#3
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Car: 86 Iroc-z/ 98 Grand Prix GTP 2dr
Engine: 305...for now/ Supercharged 3800 V6
Transmission: 700R4/ 4T65E-HD
Axle/Gears: 3:23 / 2:93
Re: Whats wrong with my car?
But why dont I have any loss of power? Also a have a 2'' hole in my overflow tank, would that cause any problems?
#4
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Car: 1992 Camaro
Engine: small block chevy 355/300hp
Transmission: 700r4
Re: Whats wrong with my car?
Well if your car is hard starting theres your first sign of loss of power and then you said your not loseing fluid but if it is boiling and you have a hole in it you have to be loseing something
#5
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Car: 86 Iroc-z/ 98 Grand Prix GTP 2dr
Engine: 305...for now/ Supercharged 3800 V6
Transmission: 700R4/ 4T65E-HD
Axle/Gears: 3:23 / 2:93
Re: Whats wrong with my car?
The hole is at the very top of the bottle but I patched it, I was just wondering if the overflow tank played a role in the coolant boiling thats all. If it is a small head leak or crack what do you recomend to do? Thanks for your replies.
#6
Re: Whats wrong with my car?
Try getting a new radiator cap and see if that stops the boiling over, mine was boiling at 220 because it didn't have enough pressure. What does the temp gauge say when it's boiling?
As for the puff of smoke, it might be the valve guide seals (very common), but the smoke is more a bluish color.
As for the puff of smoke, it might be the valve guide seals (very common), but the smoke is more a bluish color.
#7
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Car: 86 Iroc-z/ 98 Grand Prix GTP 2dr
Engine: 305...for now/ Supercharged 3800 V6
Transmission: 700R4/ 4T65E-HD
Axle/Gears: 3:23 / 2:93
Re: Whats wrong with my car?
The smoke color is white and it is only on start up. As far as themp guage It only lights up red, it doesnt have any numbers on it. (Im in the process of getting a iroc guage cluster) but for now I have no way of knowing. Should I pick up a new coolant tank just to be safe? Thanks
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#8
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Car: 1986 IROC-Z28
Re: Whats wrong with my car?
The smoke color is white and it is only on start up. As far as themp guage It only lights up red, it doesnt have any numbers on it. (Im in the process of getting a iroc guage cluster) but for now I have no way of knowing. Should I pick up a new coolant tank just to be safe? Thanks
#9
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Car: 86 Iroc-z/ 98 Grand Prix GTP 2dr
Engine: 305...for now/ Supercharged 3800 V6
Transmission: 700R4/ 4T65E-HD
Axle/Gears: 3:23 / 2:93
Re: Whats wrong with my car?
What would be the best thing to do to fix it? And if i do replace the head gasket then will my problem with the coolant tank, white smoke and rough cold start stop?
#10
Re: Whats wrong with my car?
If your burning white smoke it definately means coolant is getting in a cyllinder or 2....
Put on 2 new head gaskets and check for cracks ( I doubt that) and your car will be fine....you might want to reseat the valves and check the guides while the heads are off.....this would be a good little upgrade for your 86....
Krooser
Put on 2 new head gaskets and check for cracks ( I doubt that) and your car will be fine....you might want to reseat the valves and check the guides while the heads are off.....this would be a good little upgrade for your 86....
Krooser
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Car: 86 Iroc-z/ 98 Grand Prix GTP 2dr
Engine: 305...for now/ Supercharged 3800 V6
Transmission: 700R4/ 4T65E-HD
Axle/Gears: 3:23 / 2:93
Re: Whats wrong with my car?
No I dont think so (could be wrong) but my vin says it came with a 5.0 V8 but the RPO decoder said V6 so which would it be?
#14
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Car: 86 Iroc-z/ 98 Grand Prix GTP 2dr
Engine: 305...for now/ Supercharged 3800 V6
Transmission: 700R4/ 4T65E-HD
Axle/Gears: 3:23 / 2:93
Re: Whats wrong with my car?
Well I found out today from my mechanic that it is the head gasket. Now I have a decision to make. Fix my current 305 or try and find a good used 350? Overall it will cost about the same, what do you guys think?
#15
Re: Whats wrong with my car?
It should cost you ALOT more to drop in complete 350 than to pull the heads on the 305. Unless you just want to put A ton of money into it....I would fix the 305....remap the motor......add a flowmaster exhaust....and call it a day and go have fun. It will run alot better with just those modifications......unless......you wanna spend a bunch of money! LOL
kROOSER
kROOSER
#16
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Car: 86 Iroc-z/ 98 Grand Prix GTP 2dr
Engine: 305...for now/ Supercharged 3800 V6
Transmission: 700R4/ 4T65E-HD
Axle/Gears: 3:23 / 2:93
Re: Whats wrong with my car?
Lol, any little bit of money I get goes towards my car. But I think you are right about fixing the 305, also the exhaust isnt a bad idea either. The repair is gonna run me about $800 but it has to be done. One of these days im gonna learn how to do this stuff myself and save me some cash! Thanks for all of your help.
#17
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Car: 86 IROC-Z
Engine: 406
Transmission: TH400
Axle/Gears: Ferd 9 inch/ 4.11 spool
Re: Whats wrong with my car?
Lol, any little bit of money I get goes towards my car. But I think you are right about fixing the 305, also the exhaust isnt a bad idea either. The repair is gonna run me about $800 but it has to be done. One of these days im gonna learn how to do this stuff myself and save me some cash! Thanks for all of your help.
#18
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Car: 1992 RS
Engine: 305 TBI
Transmission: IROC 700R4
Re: Whats wrong with my car?
if you dont have a cap on your overflow tank or it doesnt seal right then it will boil. Also the white smoke is from one of the inner seals leaking probably. Which one i dono. Most camaros do it though. if you use a thicker oil it should help because it wont pass the poor seal as easy. If it were a head gasket the engine should run rough and smoke all the time.
#19
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Car: 86 Iroc-z/ 98 Grand Prix GTP 2dr
Engine: 305...for now/ Supercharged 3800 V6
Transmission: 700R4/ 4T65E-HD
Axle/Gears: 3:23 / 2:93
Re: Whats wrong with my car?
Come to find out my fan wasnt working properly and it wasnt coming on until the car got really hot. A good friend of mine "who is also a member on here" fixed it for me. I got a new coolant bottle, radiator cap, and the fan re-wired and now the car is fine
#21
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Car: 86 Iroc-z/ 98 Grand Prix GTP 2dr
Engine: 305...for now/ Supercharged 3800 V6
Transmission: 700R4/ 4T65E-HD
Axle/Gears: 3:23 / 2:93
Re: Whats wrong with my car?
As of right now the fan is always on, but pretty soon we intend on wiring it the way its supposed to be because its just a temporary solution to keep my motor cool and so far its doing its job.
#22
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Car: 86 IROC-Z
Engine: 406
Transmission: TH400
Axle/Gears: Ferd 9 inch/ 4.11 spool
Re: Whats wrong with my car?
See ya friday? thanks----jim
#23
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Car: 86 IROC-Z
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Transmission: TH400
Axle/Gears: Ferd 9 inch/ 4.11 spool
Re: Whats wrong with my car?
And yes, I wired it in with a relay...It just comes on everytime the ignition is on....
#24
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Car: 86 Iroc-z/ 98 Grand Prix GTP 2dr
Engine: 305...for now/ Supercharged 3800 V6
Transmission: 700R4/ 4T65E-HD
Axle/Gears: 3:23 / 2:93
Re: Whats wrong with my car?
Hey kzhurley I should be able to make it down there friday just give me a call when you get a chance to figure out a time thanks, oh and by the way I picked up that speaker box yesterday and its in great condition
Last edited by Drew86maro; 05-04-2009 at 06:47 AM.
#25
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Car: 1992 RS Camaro 25th Aniversary
Engine: 5.0 TBI V8
Transmission: 5 speed manual
Re: Whats wrong with my car?
Speaking of fan wiring...anyone got a good fan wiring schematic they could scan and send maybe? I need to rewire my fan because how it is right now....aint right at all
Thanks
-Darren
Thanks
-Darren
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