It's a 96 Seville STS. Runs great, starts right up. Once you down the road for a few miles and then slow down, you hear a noise coming from a pulley, I think. Not sure what it is. Any ideas? When I give it gas, it does speed up....the noise. I dont think it's a belt, not squeeling like that, moreless a rattle noise, or ticking. Thank you.
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Did you over heat warning message come on " Urgent shut off engine" or check coolant message? My coolant message came on but once car warmed up, it was late summer. No leakage but coolant level was low; added some coolant. Then it happened again but once car warmed up the check message disappeared. Then a few days later I got the Urgent Shut off Engine message! Thankfully I was able to pull off road and shut down immediately. Had it towed to Caddy shop. My water pump had gone out. New Pump and replaced all hoses. Then a year later check coolant light came on again, once car warmed up, light went off. This time tho a small leak in the radiator. My husbank put in a new radiator. Car has 117K miles and a few weeks ago outside temp 35, running late for work and didn't allow car to warm up but just a minute or two and when I puled away the check coolant light came on; but once the car warmed up (temp gauge needle in center) the light went out. Being the car is 17 years old I try to treat her like a baby and not push her so I do let the engine warm up before driving away. Do you have to add oil between oil changes? This is normal for the Northstar engine; your regular garages or full service stations don't know this; also make sure if you aren't using an authorized Cadillac garage that they put the right amount of oil; they want to put less than what is required. Not sure if this is really a solution more comments than anything... :)
you need a new electrical choke, if you do not have one on the carbutor you can buy one and install it. it start the car right away at a high idle adjusting itself down to a low idle when the engine is warm. very cheap part. you will be very happy. no engine start to start your car.
Hi there, This problem is most commonly caused by a weak fuel pump. It will need to be checked with a fuel pressure guage. If you can obtain a fuel pressure guage you will need to observe the fuel pressure while accellerating to see if it drops out. good luck
Coolant temperture sensor is the first thing to inspect.
With the engine off and cold.
Pull the connector and clean it.
Check is this the OE sensor. It will have on of the following number on it.
10045847; 12146312; 15321686; 15326386; 25036092; 25036708; 25036979; 25037182 Write any number down, You will help you to get the EXACT match in the auto part store. The sensor is around $15. If the contact cleaning does not help then just replace the coolant temperture sensor. Use the water pump thread sealer to ensure proper seal. After install the sensor,inspect for ANY coolant leak before put the vehicle back to service, Please post more information or question on the comment window. I will follow this post.