1993 GEO Prizm Engine cooling Problems

“Dangerous levels of carbon monoxide leaking into passenger compartment due to cracked exhaust manifold. Replaced cracked manifold two times, the second one lasted 16 months. This is a safety issue due to the carbon monoxide!! Exhaust repair shops told me that this is a very common problem with Geo Prizm and toyota corolla models. At over $300 to replace each time, I can not afford to keep replacing. The main concern I have though is with the carbon monoxide issue. Is this being investigated?”

“While driving car home from work I noticed engine noise getting louder. Upon closer inspection the following morning I found that the exhaust manifold was cracked completely into two seperate pieces.also noticed odor from exhaust leaking into pasenger compartment.aparently I am not the only one with this problem and would think that exhaust fumes are a large problem for my eighteen month old son.I want to know if anyone has or is investigating this and what if anything was or will be done about it.”

“Dear sir or madam: I own a 1993 Geo Prizm. Twice, I have had the exhaust manifold repaired by a welder because it was cracked and leaking exhaust fumes into the vehicle. Despite the welder's best efforts, the manifold keeps developing more cracks. I wanted to replace it with a used manifold. However, a call to several salvage yards revealed that it's very hard to obtain a good, used manifold for that vehicle. The reason is that so many of the 1993 prizms that are in salvage yards already have cracked manifolds. It seems to be common among that make and model. …”

“While driving the oil cap exploded and the engine started smoking; on 2 separate occasions th window regulators failed, sending the windows into the doors and engine would seize intermittently.”

“Weather had been cold; vehicle was running; had noticed vehicle was leaking exhaust. Checked under the hood & noticed that exhaust manifold was cracked.”