96 ga se 3.1 problems

[erik79]

I have a 96 ga se with an automatic trans 145,000 miles. I just had it inspected in December after the inspection my ABS light, Check Engine light and seatbelt light came on. When I'am driving between about 50-65mph. the whole car jolts around. This only happens when I give it some gas (to pass or change lanes). As soon as i let off the gas it stops, and/or if i put the pedal to the floor it stops. I went to Autozone and the obd says I have a misfire on cyl. #4. It feels more like a tranny problem though. If anyone has any info that can help me I would greatly appreciate it.

[maxwedge]

p0304 code? How many miles on the plugs and wires, this is your primary problem. The abs is a seperate issue and needs to be scanned with an abs function scanner.

[erik79]

I got about 70,000 on the plugs and wires. I had the motor rebuilt at about 70,000 but i used the original injectors also.

[KelsEGrandAM]

I have a 96 grand am gt 2.4L, and I had the same problems of the engine shuddering upon gradual acceleration on speeds aroun 45-60mph, and I just found the probelm. A couple of nights ago, my car would start but then it quit afetr the check engine light flashed on and off for about 5 seconds, then it went low rpms and quit. I had it towed in, and found out that my spark plugs were shot. Earlier on in November, I had a fuel pressure regualtor replaced, and I guess when all the gas got forced into the combustion chamer, it messed up the spark plugs. So, just thought I'd let you know. I would have your checked out.

[chevydog]

pull the spark plug out, if it is wet, you need to checked plug for crack, wire
for high resistance, and check coil tower for rust and resistance - need ohm
meter and spark tester, a must for propar vehicle diagnosis, not exspensive tools, if plug is not wet or fouled poss injector or pcm problem

[erik79]

thanks a lot guys i really appreciate the info

[KelsEGrandAM]

Originally Posted by KelsEGrandAM

I have a 96 grand am gt 2.4L, and I had the same problems of the engine shuddering upon gradual acceleration on speeds aroun 45-60mph, and I just found the probelm. A couple of nights ago, my car would start but then it quit afetr the check engine light flashed on and off for about 5 seconds, then it went low rpms and quit. I had it towed in, and found out that my spark plugs were shot. Earlier on in November, I had a fuel pressure regualtor replaced, and I guess when all the gas got forced into the combustion chamer, it messed up the spark plugs. So, just thought I'd let you know. I would have your checked out.

Update...
I just got another diagostics and found out it was the coil packs. They were like all scratched and worn down, causing there to be a problem with the sparking. So, I would definately check yours out. But it sucks becasue there are 2 of them and they are $100 a piece for parts, plus the coil housing for it is $100, plus labor....so yeah it sucks!