This only happens when its cold so far 1zt time it would not start for 3 days till it warmed up and it will not start now its a brand new alternator and battery so i know its not that any help is grsatly appreciTed

had engine pulled 10 months ago for $4300 cleaning and sealing all leaks and now being told crankshaft has gone and to pay $2500 to replace block on just pulled and cleaned engine because they could not forsee crankshaft. They also said thy need to redo heads.

I recently had my spark plugs changed and now I have a loud knocking sound coming from my engine. I fear I may need to replace a piston or rod.

My camaro was impounded and sat in the very hot sun for all of august. After paying $1100 to bail out, It started up with no problem, drove 3 blocks and stalled at a red light, and would crank fine but not run. I pulled all relays, fuses, checked connections for the ones I could see. Put it all together again, and it started just fine, I was happy happy... rev'd up good and idled, then stalled after 2-3 mins. then would crank then not start. i became sad sad. 2 months later tried again and same results. i pulled the entire air intake cleaned maf with maf cleaner, etc.
Please help,

no heat at times,feels like the air condition is on, than heat comes back on, back and forth. temperture max out(needle sticks on "H" than goes back down to normal. all this takes place less than 7 miles of travel.

Started engine had no tranny fluid flowing pressure. Thought maybe I didn't seat torque converter so I pulled tranny out and made sure it was seated. Think maybe I didn't have it right the first time. Still no pressure. Could I have damage it? If I take it to a tranny shop what should I tell them.

oil leak and bad gas mileage also

ive already looked for leaks but dont see any

PO 171, PO 174, PO 128, and PO 405

I had the fuel pump replaced when the car just stopped going 55 mph. But it still doesn't want to start after I put gas in it. ???

The problem started two days ago. As soon as the A/C was turned on, the rpm shot up to 1200 or 1300 rpms and shifting became almost impossible. When I tried to shift it made the same grinding sound that a worn-out clutch makes. (122,000 miles on car, clutch and transmission replaced for the first time at 118,000 miles).
It takes a few miles of driving without the A/C on or sitting for a few minutes before it shifts smoothly again. I can't understand how the two are connected. Any ideas?

blew out the old one. Buying new

i need to do a head repair

My MAF sensor is new and clean I'm hoping it's just the connector or a vacuum leak.

the PASS key or some godforsaken mystery in the Hidden Theft Deterrent system. Everybody I speak with says take it to a Dealership. I'll run it off a cliff 1st. Black on black w/T-Tops ran good looks like a vet from distance. Does anyone have a miracle. I've spent last 3 wkends and tired of it.

Car starts 50% of the time. Change original keys - nothing.
The theft system is engaged and starter wont work. New battery.

I brought my 1999 Camaro to Chevy to flash a replaced ECM but I forgot to tell them that it has a 2000 engine in it. It will crank but won't stay running now.

Lock cylinder has been replaced and have blank key, unsure if should make a new one with or without the resistor.

It was driving fine no trouble than we stoped one day and turned it off and when we went to restart it wouldn't we than bump started it and it started but then wouldn't let me give it gas and quit again.

My car will shut off on me but if I press the gas on time it will kick right back on... Usually happens when I take off on 1st gear making a right turn. although it has happened on the highway doin around 60- 65mph but again all I do is give it has and off I go as if nothing happened only my information cluster will tell me to: open then close driver window or passenger and sometimes both.. and also on occasion it would read : 2(or 3) keys programmed... I would really like to know what this is if you could shed some light I would greatly appreciate it

I replaced the fuel filter. When I start it up it will not run good unless I let it idle for three or four minutes. If I put it in gear it will die unless it warms up. Put in new plugs, wires egr valve, fuel filter but it still will sputter and die unless I sit there for a while and let it idle first.

Still have o2 sensors hooked up but car not accelerating correctly and has some knock. Don't have a computer programmer

still idles high if I tap the iac it goes down to normal rpm cleaned the port hole and does the same thing HELP