My 97 jaguar xk8 accelerates smoothly up to 3000 rpm then stops accelerating

SOURCE: 1997 ford e 350 v-10 stutters when accelerating. Smooth otherwis

Water jackets pretty tight on heads. Replacing engine right now for this problem on customer work van. Pull plugs and look for any cylinders with antifreeze in them. This truck had 250k and same problem.

SOURCE: engine surging , won't accelerate over 3000 rpm ! IS chocking is like is not enogh gas

Do you have a check engine light with this?
What can happen is a code has caused the engine to protect itself. For example in a low coolant situation when the engine heats up too much, the engine can Knock causing an Engine Knock fault.
If that occurs you will recieve a fault for each of these items. Fill the engine with coolant. Then reseting the code will let your engine accelerate normally.

SOURCE: engine wont go over 3000 rpm while driving

Is the check engine light on? If so check what codes are stored. It sounds like the m a p sensor.
Good luck dont forget to rate.

SOURCE: 2004 Mazda MPV, harsh automatic transmission at 2-3 gear

for better help with this go to mpvclub.com there are a great bunch of guys there, with ALOT of expertise.

Jeffrey Turcotte

• 8991 Answers
• Posted on Apr 21, 2011

SOURCE: I have a 2000 nissan Maxima. trouble codes are:

Hi, the car is winding out due to a vacuum leak. Not sure if the misfire is related or not. I would start at cylinder 1, though. I would check all vacuum lines attached to the intake manifold, especially around #1. Replace any cracked or hardened hoses. If all lines are good, then I would check for an intake manifold leak. With the engine idling, spray some carb cleaner on the intake gaskets especially around cylinder #1. If the engine speed changes, you have a leaky gasket. If none of these ideas panned out, I would start checking the purge valve and other valves along the lines that attach to the intake manifold, but this sounds like a pretty big leak you should find quickly. Please let me know if you have questions or need any instructions, and thanks for using fixya.