OK to preface my problem I want to relate some work I had done to the car just prior to what is now occurring. This work may or may not have anything to do with the current problem but I just want to paint a full picture.

A little over two weeks ago the hood release cable snapped and my hood was stuck in the closed position. On the advice of a fellow forum member I took the car to Corvette Paramedics in Mount Holly NJ. They had the hood open in minutes. Upon inspection the hood release cable definitely required to be replaced. Situation: Original owner of the car (I am owner #3) had installed an aftermarket alarm system. Owner #2 (my cousin) had disconnected the aftermarket alarm after having ignition problems but had left a lot of the wiring some of which was wrapped around the now broken hood release cable. Corvette Paramedics suggested removal of said wiring as it was in the way and wasn't doing anything anyway. After installing the new hood release cable car would not start, it would crank but no fire. This was probably something of a anti tamper mechanism from the aftermarket alarm system. Corvette Paramedics rewired the car 'back to factory' and all was well. I paid for service rendered and was on my way. Like I said this may or may not have anything to do with the new problem which started the following day, just want to put all the cards on the table so that I may get some advice as to where to go from here, in no way do I want to point fingers or direct blame towards Corvette Paramedics which possibly could be completely faultless.

NOW THE PROB: The morning following the above mentioned procedure I started the car up which fired right up as usual. The wife's car was behind me so I move her car, pull mine out, put hers back and when I go back to mine it had stalled. Something that has not happened before. Car does start right back up, stalls again, restarts and then I'm on my way. Car runs like crap, rough idle, loss of power, temp running about 10 or so degrees above normal (not high by any means), gas mileage gauge indicates miles per gallon is way down plus the exhaust note sounds louder/deeper than usual. I pull over, pop hood, and I believe I smell a slight rubber burning smell but can't find anything. I start on my way again planning to turn around and take the car back home when performance returns to normal and all of above mentioned symptoms go away. I write it off as another Corvette mystery and all is good for a week and a day when the same thing (minus the rubber burn smell) happens again. I did a visual inspection of the wiring later that day and can see nothing inappropriate like a wire fallen onto the exhaust or anything and all is fine for another two days with no repeat until yesterday and today the same thing happens now 2 days in a row and today it seemed to take much longer for the performance to returns to normal. For the record car is completely stock '87 4+3 coupe with 59,000 miles.

My first thought is to take it back to Corvette Paramedics and ask them to recheck their wiring job but they are not exactly right around the corner from me and I would have to take another day off from work to do so. And with my luck the way it is I'll take the car there and it will be running fine (don't ya hate intermittent problems) and nothing will be found and the prob won't resurface until the following day.

I appreciate any suggestions/opinions or direction I can get and apologize for the lengthy post

. Thanx, -Pete.

 

Clogged Cat

edit:

Just my first guess. It has to be something that deteriorating on the Cat and acting like a flap......but progressing. Heat makes it expand or stop or open....

I'd say fuel pump but the Temps being raised and it running rich......

Wait...it could be a stuck injector that is having problems

 

if i had to describe better i would say it's like i have a carbuerator and the choke is sticking....

would a sticky injector more likely get stuck when outside temps are colder? and then unstick as things heat up? same thing happened this morning with outside temp of 15 degrees here in NJ but last night with temps in mid to upper 20's car ran just fine.