Does not have a heater fan filter, only a air filter,oil filter and a trans. filter. oil filter change every 2500 to 3000 miles- air filter depends upon driving conditions it should be inspected at time of oil change- and trans. filter changed every 30 to 35,000 miles
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call or notify a bone/junk yard they have the cross reference charts for vehicle parts or try a gm dealer these are a few that are compatible 97-99 Pontiac Bonneville SE 6Cyl 3.8L 231CID VIN K Fit Note Engine VIN: K, Naturally Aspirated 97-99 Pontiac Bonneville SSE 6Cyl 3.8L 231CID VIN K Fit Note Engine VIN: K, Naturally Aspirated 98-99 Buick LeSabre ALL ALL 97 Buick LeSabre ALL ALL Fit Note With Harness Codes: HEN, HER 97-99 Oldsmobile 88 ALL ALL 97-99 Oldsmobile LSS ALL ALL Fit Note Engine VIN: K, Naturally Aspirated 97-98 Oldsmobile Regency ALL ALL
Hi, If you start out with a cold engine, the Bonneville should not overheat traveling one mile, with out the A/C on. If you are in stop and go traffic, roll your windows down, turn heater on high temp and high fan, and shut the Bonneville off at stop lights. Watch the heat gauge. The coolant fans not working may be a fuse, relay, or temperature sending unit switch. Best Wishes, Wayne
This is a typical problem on this generation of Bonneville. It's most likely the blower motor gone bad. Mine was bad at 80,000 miles.
The fan is located under the passenger side dash.
Remove the panel under the dash; two small screws(?).
There may be a couple wires to unplug from this panel.
The motor is right up to the firewall, where the passenger toes would be.
Unplug the wires from the fan.
Remove the rubber vent hose. It's a right angle hose about the size of a large thumb.
Remove three screws from the fan and the fan should fall out.
It sounds like your fans and sensors are workong like they should. The sensors work on temperature and should signal your fans to turn on between 109 and 200. They will stay running until the temperature drops back to that temp. You need to find out why your engine is runing warm, 210 is too high as a running temp. Make sure the cooling system isn't low on coolant first. If you still have the original radiator, it might be a good idea to have it flushed to clean out accumulated corrosion and **** . A "reverse flush" is the best. Your thermostat may be sticking if it's original.It has to come out for a reverse flush so make sure they replace it if you do that. It could be a collapsed hose. None of these things are overly expensive to repair but should be considered. I would try these first. Hope this helps.
You seem to have a bad cooling fan switch...it's connected to the side if the engine and when it gets too hot it turns on your cooling fans. The switch doesn't cost that much, $10 to $15 and takes all of about 15 minutes to replace.