1998 Infiniti Q45 - TROUBLE Accelerating Past 40 MPH @@

Tiny
CARDIGRAMZ
  • MEMBER
  • 1998 INFINITI Q45
  • 242,700 MILES
I have an 1998 Infiniti Q45. Today, as I was getting off the highway onto an exit ramp my car started to jerk. I had sloweddown to 40 mph and everything was fine. But as soon as I hit the accelerator and went over 40mph, it started to jerk again and wouldn't accelerate past 40. If I kept a slow and steady pace on the pedal then I could ease past 40mph. I pulled into the grocery store parking lot and stopped at the stop sign before entering the lot. When I made a complete stop, my car just turned off completely. I turned it back on and it started, but I had to rev the engine and keep it going. I drove back to my house which was literally 4 tenths of a mile away and as soon as I pull into my subdivision I notice smoke coming from my hood. I stopped the car in my driveway and have left there. After lifting the hood I notice that something had exploded/burst in there and splattered all over the inside. It came from the front of the car. I couldn't make out the liquid, but it may have been oil. I had unscrewed the oil cap and there was smoke coming out of there. What is the problem?
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Wednesday, September 11th, 2013 AT 8:20 PM

9 Replies

Tiny
SATURNTECH9
  • EXPERT
I need more details I can't see what you see what the fluid is etc?Are you sure its not coolant?
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Wednesday, September 11th, 2013 AT 10:04 PM
Tiny
CARDIGRAMZ
  • MEMBER
I couldn't really tell what it was, as it had no distinct smell. It was clear and had the texture of oil. It felt like oil. From the way it splattered, it blew from the front of the car. It left a pattern like sunrays. What other info do U need? No service engine soon lights had come on, nor have they been on. I had heard some rattling right before I had started to see smoke. It came from underneath the car.
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Thursday, September 12th, 2013 AT 5:01 AM
Tiny
SATURNTECH9
  • EXPERT
I am flying blind here can't see anything thing are any of the fluid levels low engine oil transmission fluid power steering coolant?Also was the engine running hot when this happened?Does it run and drive now?
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Thursday, September 12th, 2013 AT 7:37 AM
Tiny
CARDIGRAMZ
  • MEMBER
The car runs and drives. I started it up this morning. I haven't checked fluid levels. The fluid was clear and did not have a distinct smell. It had a smooth texture to it. I just recently had my oil changed about 1,000 miles ago. I just sent the car to the shop, so they will let me know what it is. I just want them to give me an honest and accurate diagnosis of the problem.
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Thursday, September 12th, 2013 AT 7:57 AM
Tiny
SATURNTECH9
  • EXPERT
Keep me posted on what they find also any codes in the computer they find please get me the exact code numbers not code descriptions. The codes will have aka letter followed by a four digit number.I will still help you just keep me informed what they find.
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Thursday, September 12th, 2013 AT 8:51 AM
Tiny
CARDIGRAMZ
  • MEMBER
They said I have a cracked radiator. They will fix it, but they will see if I need something else taken care of because the jerking action that happened before the smoking concerned them. They said that they would have to fix the radiator before they could assess if I may need spark plugs, or if something is wrong with the gasket/head?
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Thursday, September 12th, 2013 AT 9:32 AM
Tiny
SATURNTECH9
  • EXPERT
Had a feeling it was coolant made the most sense as far as replacing the radiator to further diagnose I would say yes. They need to run it to do a chemical block test to check for a head/head gasket issue. They way it lost power is what scares me. They could pull some plugs to see if there is coolant in the spark plug holes.
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Thursday, September 12th, 2013 AT 1:25 PM
Tiny
CARDIGRAMZ
  • MEMBER
It was just a cracked radiator. No other damage was present. I'm very happy for that! Thank you for your help! It was greatly appreciated!
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Friday, September 13th, 2013 AT 3:54 PM
Tiny
SATURNTECH9
  • EXPERT
Your welcome glad there was a happy ending that's what we like to hear.
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Friday, September 13th, 2013 AT 4:31 PM

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