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Back fired twice...
#556993 April 19th 2012 2:12 pm
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VanPLan Offline OP
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back fired and lost power. Thinking Ignition mod or coil although coil I replaced 4 months ago. Specs of carbon soot down both sides of van and around fenders... Cranks and sputters but will not start. We are gonna tackle it tomorrow or Sat and open to suggestions.

Sure doesn't looks like it belongs up there. haha
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coffee


"The little people in my head carry knives"

"Death is a long cold rest" *PF

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Re: Back fired twice...
VanPLan #557000 April 19th 2012 2:34 pm
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Do you still have catylitic converters?


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Re: Back fired twice...
VanPLan #557006 April 19th 2012 2:51 pm
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sorry to hear, hope you get it fixed soon.


2003 Grand Caravan

Member Vanatics Van Club-Spfld, IL
Member Florida Van Council
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Re: Back fired twice...
VanPLan #557037 April 19th 2012 4:42 pm
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No cat...gutted it yrs ago, pipe runs straight threw b/c need to visual pass in our state on a 95. Curious y you ask ?
coffee



"The little people in my head carry knives"

"Death is a long cold rest" *PF

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http://s1080.photobucket.com/user/Dogshock57/slideshow/


Re: Back fired twice...
VanPLan #557164 April 20th 2012 9:52 am
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Well if the cat plugged up it could cause that. Check your timing and make sure its still in time. Also if a vaccum hose blew off it can cause that.


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Re: Back fired twice...
VanPLan #557215 April 20th 2012 1:10 pm
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Sounds like the timing jumped. IIRC, GM used a nylon-tooth cam gear to reduce timing chain noise, and when they wear, the chain will jump the cam gear. Be sure to replace the crank gear also. It`s not a bad job to replace, but not exactly fun, either!

Halyeah

Re: Back fired twice...
VanPLan #557255 April 20th 2012 5:22 pm
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thats exactly what I found in my 454 was a nylon gear and I put in a double roller chain....problem solved


SUNSHINE VANS-VAN DIEGO
ADRENALIN BY THE GALLON & CHASIN RACIN
ONE FOR THE DIRT & ONE FOR THE STREETS
'93 CHEVY G30 454 4X4 SPORTVAN EXT 146" WB
'92 CHEVY G30 454 BEAUVILLE EXT 146" WB
Re: Back fired twice...
VanPLan #557256 April 20th 2012 5:54 pm
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I had one years ago that burned up a lobe on the cam. When i pulled the timing cover and went to take the chain and gears off it was so worn that i just picked the chain up off of the gear. Lol shouldnt be able to do that. Funny thing is that it cranked and run fine until the cam wore out.


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Re: Back fired twice...
VanPLan #557274 April 20th 2012 8:23 pm
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I did'nt know they still had that junk nylon gear in the motors but if that is the case and it has come apart or broken make sure you check and or clean out the oil pan and sump or broken parts will clog up the oil sump and ruin your engine. just my 2 cents.


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