car running bad

acidonly

Registered User
I have a 89 thunderbird and it has been running bad for a few months now.
If i drive over 2000rpm's it runs fine but when it is under 2000rpm's it runs
horrible.It doesn't try to stall but lacks power and shakes some.
I had a complete tune up done.I also replaced the fuel pump and filter.
Both oxygen sensors and both catalytic converters.With only a 6cyl i am only getting 10mpg.Brought it to a shop they replaced sparkplugs for a second time now and put fuel injection cleaner in saying an injector is sticking.
Went through that fuel tank and still running bad.
 
Sad that they guessed that way. Pull codes to see if that helps any. Most likely you won't get any. But I'll lay odds that your intercooler isn't sealed properly. If you recently had the IC tubes off, there's where to look. I'd go through whats involved, but you'd learn more by using the search function with the words: How IC Tube reseal :cool:
 
if it shakes its probably missing on one or more cylinders check plugs or wires or maybe a wire is crossed
 
Back
Top