89 Pickup not quite right after recovery...
#1
89 Pickup not quite right after recovery...
I have a 1989 Pickup, 22RE, stick, 4x4, and I recently had to go recover my friend's 93 Grand Cherokee. After carefully navigating over a mile and a half of muddy trail, I recovered the Jeep. Now, the truck is taking forever to warm up (30 minutes and it was still cold) and when I hit the throttle, just off idle it sputters and chokes, but doesn't die. If I bury my foot, it runs almost fine. What could have caused this? The catalytic converter was glowing red after I returned to pavement, and now emits a really awful smell. Anyone had this happen before?
#7
the entire exhaust aft of the manifold was brand spankin' new, i have the receipt. was done 3 months ago. still think the cat being cooked can cause these problems? I don't have an O2 sensor after the cat, tho...
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#8
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It could also be running extremely lean. Is ur header glowing? Maybe your timing chain skipped a tooth and is running way advanced. The rotten egg smell can be lean condition-related. You say your plugs looked ok. Were they white,tan, black, etc?
#10
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Yeah Red hot cat means that the exhaust flow is restricted there, so I bet the cool water splashing on the 400+ degree cat caused the insides to crack and fall apart, causing a blockage! Time for a new cat, unbolt the exhaust where the header ends and see if the loss of power stops. But dont drive it like that for too long, cause the 02 will be reading lean and may overfuel the engine!
#11
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Red hot cat usually means there is an excess of hydrocarbons going into it (too much fuel). Check that wiring to the O2 sensor is still intact, check your plugs for fouling, check for codes.
#12
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x2 on to much fuel the cat is doing its job by burning it all in there. check for damages to your exhaust first of course. i have never heard of a cat glowing because of a lean condition.
#15
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Whitish grey? That sounds like your timing may be too advanced, get the timing done or do it yourself, its not hard to do, you will need (if you don't already have one) to get a timing light.
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Figure out the 'not warming up' problem first. If the engine, for some reason (thermostat stuck open, fan clutch stuck engaged maybe?), doesn't warm up properly, the mixture will be rich due to the coolant temp sensor feedback to the ECU, and that can cause the converter to overheat.
also, if the tailpipe was submerged long enough for mud to migrate up and stick in the tail pipe, the restriction could likewise cause a similar issue with the converter overheating.
also, if the tailpipe was submerged long enough for mud to migrate up and stick in the tail pipe, the restriction could likewise cause a similar issue with the converter overheating.
Last edited by abecedarian; 12-20-2009 at 07:11 PM.