Top 20 1999 Saturn SL Questions & Answers


You have to open the bleed ports . there are several located by the engines thermostate housing and near intake hoses. It will allow the air to escape .

1999 Saturn SL | 324 views | 0 helpful votes


Sound like a blown head gasket. Changing the knock sensor will not remove a knock. It's a sensor.

1999 Saturn SL | 375 views | 0 helpful votes


if the thermostat has not been replaced i would do this, also while doing this flushed the radiator system out, is also best to back flush they system, also when was the last time the water pump was changed, as over time the fins on the water pump will deteriorate and cause overheating problems, with a/c it will help keep the engine cooler, but you need to check that the parts ive said have been done as this is the main cause of the engine over heating, you will probably find the thermostat is not working properly and there is rust red water in the system, and rusty parts in the emptied water thats why you will need to back flush the engine youtube back flush engine, top up with new antifreeze recommended for your area and engine. and bleed out the air from system. if the water pump has not been replaced in 5-10 years it needs changing.

1999 Saturn SL | 81 views | 0 helpful votes


there is a fuse for the radio in the fuse box, if your power was ripped out , find the radio fuse and make a new conection from there
ground can be made conecting to any metalic part of the car

1999 Saturn SL | 64 views | 0 helpful votes


yeah. This is only a temp fix. GM has a bulletin warning against the use of Slick 50 w/PFT. It can clog oil passages

1999 Saturn SL | 176 views | 0 helpful votes


This can be caused by a stuck blend door or a clogged heater core. Can you hear the blend door moving when you turn the temp knob? If not, it may have disconnected from the control panel or blend door. If the door works, remove the heater core and flush it or replace it.

1999 Saturn SL | 96 views | 0 helpful votes


Blown head gasket or cracked block

1999 Saturn SL | 93 views | 0 helpful votes


You don't state mileage on the car but I'm betting well over 100K. The master cylinder is sold as a one piece kit which has the line and the slave cylinder attached to it. More than likely your slave cylinder has gone bad, which means you'll have to drop the transmission to get it out as it's an internal mechanism that pushes your throw out bearing to engage your clutch. Yes it's time to also change the clutch and pressure plate too, you may as well as long as you have to drop the transmission AND in order to do that my friend, you're going to have fun, because the whole front of the car has to be lifted and the WHOLE X sub-frame has to be dropped which means struts and all have to be disconnected. NOT a fun driveway weekend job unless your young, don't mind bending and kneeling on concrete and have power tools, air guns, to make it easier. Strong arms if you're going to attempt it with hand tools. Good luck to you.

1999 Saturn SL | 87 views | 0 helpful votes


You have a high resistance problem in the electrical circuit ,Possibly I/P fuse box where the relay lives . Do you know how to use a voltmeter to do electrical testing ?
Testing Electric Fuel Pump Problems with Voltage Drop Test

1999 Saturn SL | 132 views | 0 helpful votes


check and / or change the CPS it is behind the starter

1999 Saturn SL | 67 views | 0 helpful votes


run jumper wires to the fan motor to see if they work if they work then try turning on the A/C to max that should also make the fan come on if that works change the switch in the radiator or the temperature switch in the cylinder head

1999 Saturn SL | 418 views | 0 helpful votes


I really doubt this is the case.

1999 Saturn SL | 22 views | 0 helpful votes


IGN 4
Green (30)
Feeds directly to A/C Relay, AIR PUMP Relay, WINDOW Relay. IGN 1 (10), TURN (10), B/U LP (10), EGR (10), EIS (10), PCM I (10), INJ (10), WIPER (25), AIR BAG (10), RADIO (10)
Located in the under hood fuse box .
located in the under hood

1999 Saturn SL | 117 views | 0 helpful votes


Jim, Normal to have a little up and down, ,a lot could be small vacuum leak, temp. censor, throttle position sensor, are there any codes.

1999 Saturn SL | 96 views | 0 helpful votes


Daytime running lites are the hi beam lites running on reduced voltage. So when you turn on your lites the voltage goes up to normal and you have hi beam lites

1999 Saturn SL | 113 views | 0 helpful votes


Hi Tim

Short answer is, yes, a cracked seal, or worn out gasket could be at the root of the leak. That said, the transmission is a major component of your drivetrain. It sits, most likely, under your engine, with the shafts to the front drive wheels coming out either side. Unless you have some serious tools and a very good guide (this will likely mean pulling the entire engine), this is not something to go into lightly as a DIY project.

1999 Saturn SL | 67 views | 0 helpful votes


pull on the emergency brake do the DRL go out?

1999 Saturn SL | 83 views | 0 helpful votes


there are 2 fuses for the wipers one is in the in car fuse box and that on is # 3 it is a 25A the other one is under the hood in the fuse box the fuse there is a 30A maxi fuse spot #5

1999 Saturn SL | 101 views | 0 helpful votes

Not finding what you are looking for?
1999 Saturn SL Logo

1,795 questions posted

Ask a Question

Usually answered in minutes!

Popular Products

1998 Saturn SL
1998 Saturn SL

931 Questions

2000 Saturn SL
2000 Saturn SL

941 Questions

1997 Saturn SL
1997 Saturn SL

851 Questions

1996 Saturn SL
1996 Saturn SL

599 Questions

1993 Saturn SL
1993 Saturn SL

85 Questions

Top Saturn Experts

Marvin
Marvin

Level 3 Expert

85216 Answers

Jonah Oneal

Level 3 Expert

14092 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22485 Answers

Are you a Saturn Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

View Most Popular

SL Saturn

  • SL Saturn

Most Popular Question

problem saturn sl 1999 changed knock

  • Cars & Trucks
Loading...