2.8 liter – What Stinks?
Question:
Hi group, I currently own a ‘87 GMC S-15 High Sierra (2wd). It has a great running 2.8 which is always has been tuned up. It has about 112k miles on it – with no known problems at all. I’ve owned this truck 2.5 years and I still can’t figure out why the the exhaust smells so aweful. It smell like a comination of insect repellant and burned plastic. I did already replaced the catalytic converter with the identical OEM part #, 1 year ago. Is this the sign of an emmission, ignition, or charging system problem? Is this smell normal for this motor? Maybe I’ll experiment with different gap sizes. Any info you could post would be appreciated! Jay — Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com).
Response:
Bad smells like rotten eggs, etc. from the exhaust can be caused by a too rich air-fuel mixture. — Robert Hancock Saskatoon, SK, Canada Home Page: http://www.roberthancock.com/
– Hide quoted text — Show quoted text -> Hi group, > I currently own a ‘87 GMC S-15 High Sierra (2wd). It has a great running 2.8 > which is always has been tuned up. > It has about 112k miles on it – with no known problems at all. I’ve owned > this truck 2.5 years and I still can’t figure > out why the the exhaust smells so aweful. It smell like a comination of > insect repellant and burned plastic. I did already > replaced the catalytic converter with the identical OEM part #, 1 year ago. > Is this the sign of an emmission, ignition, or charging system problem? Is > this smell normal for this motor? Maybe I’ll experiment with different gap > sizes. > Any info you could post would be appreciated! > Jay > — > Outgoing mail is certified Virus Free. > Checked by AVG anti-virus system (http://www.grisoft.com).
Response:
I know this sounds silly, but make sure the remnants of a plastic bag hasn’t baked on to your exhaust system somewhere.
– Hide quoted text — Show quoted text -> Hi group, > I currently own a ‘87 GMC S-15 High Sierra (2wd). It has a great running 2.8 > which is always has been tuned up. > It has about 112k miles on it – with no known problems at all. I’ve owned > this truck 2.5 years and I still can’t figure > out why the the exhaust smells so aweful. It smell like a comination of > insect repellant and burned plastic. I did already > replaced the catalytic converter with the identical OEM part #, 1 year ago. > Is this the sign of an emmission, ignition, or charging system problem? Is > this smell normal for this motor? Maybe I’ll experiment with different gap > sizes. > Any info you could post would be appreciated! > Jay > — > Outgoing mail is certified Virus Free. > Checked by AVG anti-virus system (http://www.grisoft.com).
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Response:
That was going to be my reply as well. Been there. — Ripper http://www.ripper1.com/ Graphics and murals by Ripper – Hide quoted text — Show quoted text -> I know this sounds silly, but make sure the remnants of a plastic bag hasn’t > baked on to your exhaust system somewhere. > Hi group, > I currently own a ‘87 GMC S-15 High Sierra (2wd). It has a great running > 2.8 > which is always has been tuned up. > It has about 112k miles on it – with no known problems at all. I’ve owned > this truck 2.5 years and I still can’t figure > out why the the exhaust smells so aweful. It smell like a comination of > insect repellant and burned plastic. I did already > replaced the catalytic converter with the identical OEM part #, 1 year > ago. > Is this the sign of an emmission, ignition, or charging system problem? Is > this smell normal for this motor? Maybe I’ll experiment with different gap > sizes. > Any info you could post would be appreciated! > Jay > — > Outgoing mail is certified Virus Free. > Checked by AVG anti-virus system (http://www.grisoft.com). > —–= Posted via Newsfeeds.Com, Uncensored Usenet News =—– > http://www.newsfeeds.com – The #1 Newsgroup Service in the World! > —–== Over 80,000 Newsgroups – 16 Different Servers! =—–
Response:
Check your coolant level in the radiator. 2.8’s had a tendency to develop a leak between the intake manifold and the heads. Sometimes they would suck oil, sometimes antifreeze, depending where the break was in the gasket. Replacing the intake gaskets is the cure.
– Hide quoted text — Show quoted text -> That was going to be my reply as well. Been there. > — > Ripper > http://www.ripper1.com/ > Graphics and murals by Ripper > I know this sounds silly, but make sure the remnants of a plastic bag > hasn’t > baked on to your exhaust system somewhere. > > Hi group, > > I currently own a ‘87 GMC S-15 High Sierra (2wd). It has a great running > 2.8 > > which is always has been tuned up. > > It has about 112k miles on it – with no known problems at all. I’ve > owned > > this truck 2.5 years and I still can’t figure > > out why the the exhaust smells so aweful. It smell like a comination of > > insect repellant and burned plastic. I did already > > replaced the catalytic converter with the identical OEM part #, 1 year > ago. > > Is this the sign of an emmission, ignition, or charging system problem? > Is > > this smell normal for this motor? Maybe I’ll experiment with different > gap > > sizes. > > Any info you could post would be appreciated! > > Jay > > — > > Outgoing mail is certified Virus Free. > > Checked by AVG anti-virus system (http://www.grisoft.com). > —–= Posted via Newsfeeds.Com, Uncensored Usenet News =—– > http://www.newsfeeds.com – The #1 Newsgroup Service in the World! > —–== Over 80,000 Newsgroups – 16 Different Servers! =—–
