Chevrolet Malibu Engine Problems
phatmatttrip60
Member Posts: 3
in Chevrolet
I drive a malibu 2000 and when i start it up the engine taps for about five minutes or until it warms up... dont know what the problem is, could someone help me out is it bad or good or cant be good
0
Comments
Bulletin # 01-06-01-005
Actually it is a GM problem with Chev,Buick & Pontiac 3.1L engines.
It is not serious, only a noise.It's called Piston Slap or Cold Engine Tick.
GM calls it a "Customer annoyance issue" and will not affect the durability or life of the engine.
You see the Einsteins at GM thought is would be realy funny to put a polymer coating on only 2 of the 6 pistons
(cyliders 1~4 uncoated)on this motor, hence the racket it makes when you start it up cold.
When I bought my new '01 malibu in 2001 I heard this noise after it had about 3,000 miles and was convinced it had a bad valve train. Fought tooth and nail with the dealership.
Finaly the dealership admitted and showed me the official GM bulletin on the problem.
The fix is to replace all of the pistons.
But the choice was up to me as long as it was still within the 1st 36,000 miles or 3yrs.
Guess what I chose. Yep! I chose to have it done.
But the noise came back after it had about 70,000 on it.
I must say it doesn't burn any oil even with 150,000 miles on it.
It would be kinda nice if the engine ran better.
It runs like garbage and is unreliable.
And it has been working since. And again Chevy sends me a questionaire about the dealership but again fails to ask me what I think of their car. What I think is next time it will be Toyota.
You could try the dealer for a repair plug, but you would need to do a lot of splicing.
Just reading up on problems with all GM cars caused by radiator and Dex cool coolant (orange stuff) blowing gaskets...leaking etc..
did you check to see what's in your radiator?
google Consumer Affairs GM Dexcool
hundreds of complaints..
one guy says he solved the problem:
M L of San Rafael CA (08/26/06) *WE'VE FIXED THE PROBLEM(S)!!
And while it's irritating to look back and see how much $$ I've needlessly thrown at my '92 K1500 Chevy Blazer, several radiators, head gasket, heater core, trans cooler lines, uptake gaskets, pretty much everything that has come into contact with cooling fluids has either corroded or slowly disintigrated. All due to what turns out to be a basic electrical design flaw at GM.
radiator guy hates Dexcool, suspects that perhaps it's the electrolisis that causes the Dexcool to turn to a jelly goop.
Says the higher the amp reading in the radiator, the more goopy Dexcool seems to be.
My story: The original radiator in my '92 Chevy lasted a good while (hint: older radiators had A LOT more copper in them). The trouble really all started and in a big way, after replacing the original radiator. I did pay the $500.00 for the new GM radiator. (hint: the newer made radiators have little to no copper in them. They are mostly aluminum and steel) Within a couple months, I started having to dump money into my K1500 Blazer, LOTS of it!
When radiator #3 started leaking, I got fed up with my mechanic, who kept saying, it's a high milage vehicle. I should expect this. Not thinking it was even slightly odd that everything seemed to be connected to the cooling system or somehow come into contact with it, even though nearly every repair seemed to require draining the radiator?? So, I looked for the oldest, greasiest, busiest, radiator shop in my area. First thing the guy did, after hearing the list of repairs I'd made, was to drop a probe in the radiator to check for a charge, in other words, electrolysis. An acceptable reading is .03 amps. I was running at .38 amps!! Turning the engine off it would only drop it to .27 amps.
So, he replaced leaking radiator #3, and rechecked it,.. .58 amps!! It went up! He shrugged and said, new one must have even less copper than the last one. I've seen a lot of these GM's with this crap going on. I've been doing this thing that seems to fix this problem. Then an off-duty local cop pulled in with his Blazer, newer than mine. We got to talking, he'd had most of the same problems and this radiator guy fixed it for him 3 years ago, and hadn't had a problem since.
Here's what my guy did...
#1 - Attached three, braided ground cables, randomly to the radiator and the block, and grounded them.
#2 - Then took a piece of copper pipeing aprox 3 long, with the same hollow as the heater-core hose, soddered a copper ground wire to the side of it. Midpoint on the hose running from the radiator to the heatercore, he spliced this small copper pipe into the line using hose clamps. Then using the ground wire he had soddered to it, grounded it to the engine block.
#3 - Drained and refilled the cooling system with DISTILLED water and GREEN coolant. Dexcool in his experance is CRAP, and I quote him. He did all this very quickly, then dropped the probe into the radiator and poof .02 amps! It cost me $100. He has me come in to recheck the amps once a month. And still 6 months later, .02 amps, and no new problems. I was averaging 1 problem per month, a leak here, a suspicious gasket there. Now nothing. So, it seems to me that there are really two problems. One affecting the other. A cooling system grounding problem, electrolysis resulting in corrosion and dissintigration of parts and gaskets. And then Dexcool which is unstable in an electrically charged enviroment and turns to goop. Maybe I'm wrong but my '92 K1500 Blazer now has 212K miles on the original engine
It's in the used car (2002 cadillac) I just bought and I see that the fellow who owned it had a blown piston and gasket ast 17,000 miles when it was brand new...had that replaced under warranty and then the hoses too...so I'm guessing he had the same problems.At 35,000 miles he had the car in 35 times......so it sounds to me like this stuff went all through his engine system into other systems too.
Just thought I'd be helpful and point people toward consumers affairs complaints which lists a litany of problems similar to that the other poster mentioned.
Lately, I've noticed that when I start the engine in the morning, it first idles very rough at low rpm, then suddenly shoots to over 2000rpm, then drops back down to 950rpm, all in 2-3 sec. After that, the idle is fine, including after being parked at work all day. I suspect the idle air control valve, but I'm curious if anyone else has had this problem and found the cause.
I could not understand a lot of what you wrote.
First, my remote start failed. Then I had a brake issue; and today I was driving home from work when I noticed my temperature gauge wasn't working at all. No big deal, I figured, I could get that looked at next time I pop in for service.
When I dropped my carmate home, she noticed when she stepped outside that my car was unusually loud. Looked like the fan was going in overdrive. I drove home and when I shut the engine off I noticed the fan kept on going for about 20 seconds.
I guess I'll take it in tomorrow....sound like a thermostat?
the upper and lower intake manifold gaskets, and the exhaust manifold gasket, and the head cylinder gasket are shot, they all went in a short period of time. I have about 67000 miles on it. It is going to cost about 2grand to fix. It has something to do with dexcool eating the older gaskets. Many people are trying to get gm to acknowledge and fix or reimburse, but they are not budging.
Thanks,
Jake
Take it in if under warranty, some codes will set without a light.
light came on. Looked and sounded like engine misfire. checked the codes and came up with code P0304 cylinder #4 misfire. checked cylindrer 4 compression and spark-ok.
Fuel injector found also warking. PUZZZLED. With the engine, running removed
ignition wire from spark plug #4 -got electricuted ( DON'T DO THAT) but the noise
gone- interesting. Removed front valve cover and found 1 bolt backed out from rocker arm hence not putting any pressure on the valve spring (not sure intake or exhaust) . it explains why cylinder comression was ok- the valve was closed all the time. torqued the loose bolt and installed front valve cover. started up and it's fixed.
Why the rocker arm bolt was loose- probably because it wasn't torqued wright when
lower intake manifold gasket was replaced in 2002 by an independent repair shop.
that's my 2 cents. Have a great day.
to addres this issue before it gets bigger. Radiator flush- big no no. if it was my car
i would replace thermostat and coolant as preventetive maintenance. you are better
of to use a-c delco thermostat and match the coolant that you are having now, most
likely red colored dex-cool. ( be 100% sure not mix different coolant types).
Next, is your engine overheating when driving at free way speed or idling, let me know.
Now the issue is back, combined with what seems to be the opposite problem, when accelerating, I can't get it to go past 45mph on occasion. I can get the rmp up to 5000, but I'll be stuck at 45. I'll let off the gas completely, the car will lurch a bit, and then I can coax it up to 50 or so. Then it may do it again, or it may accel. smoothly up to 60 for me.
Anyone have any ideas on where to start looking on this one? Are the issues related at all?
The idle randomly races to 2,500 to 3,500 rpms and passing gear seems to dissapear but I can still manualy downshift with the gear selector.
If I shift it into nuetral and coast and turn the ignition off then cycle the igintion key on and off several times then restart it ussually resets the idle but restorts back to high idle shortly thereafter.
I seem to get better results if I stop, turn it off then turn the key to the ON postion and move the gear selector from P to 1 several times and cycle the key ON and Off it does temporarily reset the idle.
It does this everytime I drive it ussualy after it's warmed up. I've replaced the Air Idle Control with no results and is getting worse.
Please help with this...........
had to replace headgasket,intake gaskets,valve cover gaskets all that stuff. started it up the idiling was rough it wanted to die on me took it to be check was told it was 3 different censors changed them but it is still idiling like it has a miss in it but only when sitiing still and it does it in all gears but runs good if the gas is being pushed
could someone please help me on how to fix this problem