Last post on Nov 18, 2013 at 9:26 AM
You are in the Chevrolet (Geo) Prizm
What is this discussion about?
Chevrolet Prizm, Geo Prizm, Sedan
#1440 of 1447 My gf has a 1999 prizm 1.8
Jun 23, 2012 (8:55 pm)
Her check engine light is on for evap I know its the canister frilter since can't fix by cap replacement or fuel treatment. Other issue is it keeps bogging down til you hit about 2600 rpms changed plugs and wires valve cover gasket and the random missfire P0300 P0302 P0303 went away when change plugs. Now it is still bogging down after change and codes were cleared the number 2 and 3 cylinder are working but not as much as 1 and 4 is they are very sluggish. We are thinking its a fuel injector since they have 139000 miles on them. Any insight? If any answer are out there working on this tomorrow I will have my cell 3154069729 could use some help can't get the parts yet just going to pull the top of motor apart to make sure no leaks.
#1441 of 1447 Cooling Fan Mystery
Aug 26, 2012 (1:02 pm)
1990 Prism, VIN code 6; 150,000m.
When I switch it on ignition, [when engine is cold] the cooling and air conditioner [its turned off]
fans come on at the same time. I've tested the temperature switch and it's fine. I've looked at the relays and fuses and they seem fine also. Any ideas?
#1442 of 1447 1999 Prizm cabin filter
Mar 01, 2013 (6:01 pm)
Does anyone know if the 1999 Chevy Prizm has a cabin filter and if so, how do I get to it?
#1443 of 1447 Re: 1999 Prizm cabin filter [davec4]
Mar 01, 2013 (8:56 pm)
It does not have a cabin filter. Basically, same car as a '99 Corolla.
#1444 of 1447 Re: Broken Wheel Bolt [glenpointe]
Aug 15, 2013 (7:01 pm)
Use a punch tool and sledge to drive the stud out the back of the hub. Autoparts stores can sell you a replacement stud for a few dollars. Get a short stack of thick washers that allow the stud to pass through the center. These will allow you to put the lug nut on without bottoming out your lug wrench. Push the new stud through the hub from the back aligning the grooves in the stud with the ones in the hub if they are grooved. Put the wheel nut on reversed so the wide part of the nut is against the washers. Turn the nut to pull the stud through the hub. Watch the back side to pull it only as far as needed to fully seat the stud.
#1445 of 1447 Re: Running Lean....Check engine light is on 
Sep 18, 2013 (7:10 pm)
Heres a possible solution to the check engine light. These cars are known for an oil leak at the rear of the block where the timing chain tensioner is located. The tensioner has a round rubber gasket that leaks. That leak allows oil to be burnt by the engine it is going out the exhaust, and coating the catalyst, and the oxygen sensor. It took months for me to diagnose the issue. I replaced the tension as it came with a new rubber gasket as well as a strong spring to apply proper tension to the timing chain.
I replaced the damaged o2 sensors which cleared all the codes. Car runs great now! Another thing to check depending on the code is the intake manifold gasket. Its metal and can warp which leaves a very tiny amount of air into the intake which gives the car the "lean fuel" code.
#1446 of 1447 94 Geo Prizm LSi 1.8L exhaust converter problems
Nov 16, 2013 (8:17 pm)
We are getting some horrible and I mean horrible gas mileage and serious lack of power and high Rpm's on our car. Our manifold converter is I desperate need of replacement and after speaking with a muffler shop, who btw tried to hit us hard with costs, we decided to replace it ourselves. But in the meantime can we gut it out and drive it like that or do we risk damaging the engine? Can it be bypassed completely? Can we get some info on this from anyone who's had these issues??
Thanks for your response....
#1447 of 1447 94 Geo Prizm not starting
Nov 18, 2013 (9:26 am)
I have a 94 Geo Prizm 1.6 L that will not start. This is the second time in as many months where this has occurred. After the first, I found that the coil was bad and got back up and running after that replacement. Now, I find that I am not getting sufficient power to the fuel pump for it to run. I have tested both the EFI main relay and the other relay in the circuit (can't recall the name), and get battery voltage to the downstream relay but only a small voltage (100 mV) coming out. I tested the fuel pump, and applied battery voltage directly to it and it works. What other sensors or relays are coming into play here that I need to check?