2002 issues
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2002 issues I have a basiclly stock 2002 z28 m6 with 140k miles and has a KN cokd air kit on it. Tge issue im having is its very rough during the warm up period and i obviously know it coukd be an array of different things but maybe its sonething simple i could do hopefully
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From: Schiller Park, ILL Member: #317
If it has a K&N filter then the MAF probably needs cleaning, but this likely won't solve your primary concern if all the issues are only when the engine is cold (open loop.) I would check fuel pressure (should be close to ~60psi at all times) as a first step. At 140k it may need plugs and injector cleaning depending on previous maintenance. Do you have an SES light at all? If so you'll want to get that scanned. In general, if you have access to a scanner it would be ideal to look at things such as fuel trims and misfire counts, etc. - that may point you in a specific direction but you didn't mention if you have access to a comprehensive scanner.
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If it has a K&N filter then the MAF probably needs cleaning, but this likely won't solve your primary concern if all the issues are only when the engine is cold (open loop.) I would check fuel pressure (should be close to ~60psi at all times) as a first step. At 140k it may need plugs and injector cleaning depending on previous maintenance. Do you have an SES light at all? If so you'll want to get that scanned. In general, if you have access to a scanner it would be ideal to look at things such as fuel trims and misfire counts, etc. - that may point you in a specific direction but you didn't mention if you have access to a comprehensive scanner.
I do not have any ses lights on at this time but i can obiviously get my hands on a maf clearner i also picked up some kn filter cleaner and just got my oik xhanged again 1k miles before it was due just to make sure yano. But i will start with a maf cleaner and yeah i do probably need a tune up plugs n wires. Im surw theyve never been changed
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I do not have any ses lights on at this time but i can obiviously get my hands on a maf clearner i also picked up some kn filter cleaner and just got my oik xhanged again 1k miles before it was due just to make sure yano. But i will start with a maf cleaner and yeah i do probably need a tune up plugs n wires. Im surw theyve never beenchanged
Also im having issues with the car over heating on hot days and in traffic in hot days 50/50 anti freeze is always at the right point of the dip stick no leaks was told to take out the windshield washer resivior and maybe one or two other pieces of plastic or sonething to try to get more air flow to the radiator though
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From: Schiller Park, ILL Member: #317
Also im having issues with the car over heating on hot days and in traffic in hot days 50/50 anti freeze is always at the right point of the dip stick no leaks was told to take out the windshield washer resivior and maybe one or two other pieces of plastic or sonething to try to get more air flow to the radiator though
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the fan is defentily working and idk maybe this is normal? a few poeple have told me its a normal thing for the fbodys but alot of other people theirs dosent even run at the middle point of 220 they run much colder
first off, what exactly are you calling "overheating"? if it really is overheating, its for sure an airflow issue, which screams fans. either both speeds are not working on one or both fans, or there is trash stuck to the condenser or between it and the radiator, or, maybe both trash and a fan issue. So you're looking at cleaning, fan motors, or some relays/fuses.
if the plugs are old, may as well replace them. I'd srart there...
if the plugs are old, may as well replace them. I'd srart there...
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im calling over heating is when my temp gauge goes over half or 220. and i can hear my fan kick on and its not a duel but a single. i did just recently change my air check valves and the pipes that come out of them and go into the motor i believe werent very clean i cleaned them out as much as possible but i guess i could get new ones to try to help. and i also just got done cleaning my MAF and TB and kn cold air filtrer and just got an oil change so hopefully that does a little something for the roughness of the cold start idle but im only hoping...
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From: Schiller Park, ILL Member: #317
Originally Posted by iriez28510
I have a basiclly stock 2002 z28
And no 2002 Z28 came with a single fan. They were all dual, same as every other LS1 F-body from '98-'02. If you have a single fan currently, then this is not stock and there is no telling what other sort of modifications may have been made to the cooling system or air routing/fan shroud. Did the car once have a Procharger on it? A slim line single fan conversion is common to make space for a centrifugal blower. Or perhaps the stock fan motors died and someone just swapped to a single fan, but again there are several areas of this conversion that might be suspect depending on why and how it was converted.
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Loose intake, bolts come loose and don't feel loose because the bolt threads get full of crap. Intake leaks enough air past the seals and runs rough. Eventually it will cause a po300 code random misfire. Very common with these nylon intakes.
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To my knowledge the car did not have a pro charger but obviously can be forsure. Was bought from a lady whos bfs drove it from time to time and you can tell was very rough on it. Tge car does have a single fan maybe thats the over heating issue also the upper radiator hose is have metal. ..like ruber fdom radiator to weird metal or steel or aluminu center piece back to rubber to the motor..if that makes sense.. as for tge rough ness..taking it to a shop to get a tune up plugs and wires because it has 140k miles i also want to do a radiator flush and tranny flush just for ***** and giggles i suppose. I. Will take a few pictures later in tge day and post about tge radiator hose and fan though
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From: Schiller Park, ILL Member: #317
Is the single fan due to the fact that one factory fan is missing or because they were both removed and replaced with a single, larger diameter fan? Whichever the case, this is not stock and may have something to do with your cooling issues.
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So uppon further inspection there is two fans ( wow i feel stupid sorry) lol and evedyone ive spoke with looks at that metal piece on the upper radiator hose and says get rid of it. So i will be searching for a all rubbet hose today. Also i cant seem to get the whine out of my steering very embarrassing when at car meets ive been through two power steering pumps and no luck..ive read maybe have the fluid changed because this could be from air in the lines or sonething of the suchess. Also i need a new power steering resiviour cap because mine leakes like crazy...
Joined: Nov 2001
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From: Schiller Park, ILL Member: #317
So uppon further inspection there is two fans ( wow i feel stupid sorry) lol and evedyone ive spoke with looks at that metal piece on the upper radiator hose and says get rid of it. So i will be searching for a all rubbet hose today. Also i cant seem to get the whine out of my steering very embarrassing when at car meets ive been through two power steering pumps and no luck..ive read maybe have the fluid changed because this could be from air in the lines or sonething of the suchess. Also i need a new power steering resiviour cap because mine leakes like crazy...
Here is the thread I mentioned above, if you want some in-depth reading on the topic:
https://ls1tech.com/forums/general-m...g-success.html